diff --git a/.travis.yml b/.travis.yml
index d56623c5..fd7d818a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,15 +1,20 @@
 dist: bionic
 language: python
-python:
-- '3.6'
-- '3.7'
-- '3.8-dev'
+cache: pip
+matrix:
+    include:
+    - python: '3.6'
+      env: TEST_SUITE=suite_3_6
+    - python: '3.7'
+      env: TEST_SUITE=suite_3_7
+    - python: '3.8-dev'
+      env: TEST_SUITE=suite_3_8_dev
 before_install:
   - pip install -r requirements.txt
 install:
 - python setup.py test
 script:
-- python theHarvester.py -d metasploit.com -b baidu,bing,censys,crtsh,dnsdumpster,dogpile,duckduckgo,exalead,linkedin,netcraft,threatcrowd,trello,twitter,virustotal,yahoo
+- python theHarvester.py -d metasploit.com -b baidu,bing,censys,crtsh,dnsdumpster,dogpile,duckduckgo,exalead,linkedin,netcraft,threatcrowd,trello,twitter,virustotal,yahoo -l 200
 - pytest
 - flake8 . --count --show-source --statistics
 #- mypy *.py
diff --git a/theHarvester/__main__.py b/theHarvester/__main__.py
index 43bab578..f0dc79b7 100644
--- a/theHarvester/__main__.py
+++ b/theHarvester/__main__.py
@@ -67,8 +67,8 @@ def start():
     word = args.domain  # type: str
 
     if args.source is not None:
-        engines = set(map(str.strip, args.source.split(',')))
-
+        engines = sorted(set(map(str.strip, args.source.split(','))))
+        # Iterate through search engines in order
         if set(engines).issubset(Core.get_supportedengines()):
             print(f'\033[94m[*] Target: {word} \n \033[0m')
 
diff --git a/theHarvester/discovery/googlesearch.py b/theHarvester/discovery/googlesearch.py
index ee9ab214..4eb64843 100644
--- a/theHarvester/discovery/googlesearch.py
+++ b/theHarvester/discovery/googlesearch.py
@@ -30,13 +30,13 @@ def do_search(self):
         self.results = r.text
         if search(self.results):
             try:
-                if isinstance(search(self.results), bool):
+                self.results = google_workaround(urly)
+                if isinstance(self.results, bool):
                     print('Google is blocking your ip and the workaround, returning')
                     return
-                else:
-                    self.results = google_workaround(urly)
             except Exception:
-                pass
+                # google blocked, no useful result
+                return
         time.sleep(getDelay())
         self.totalresults += self.results
 
@@ -51,13 +51,13 @@ def do_search_profiles(self):
         self.results = r.text
         if search(self.results):
             try:
-                if isinstance(search(self.results), bool):
+                self.results = google_workaround(urly)
+                if isinstance(self.results, bool):
                     print('Google is blocking your ip and the workaround, returning')
                     return
-                else:
-                    self.results = google_workaround(urly)
             except Exception:
-                pass
+                # google blocked, no useful result
+                return
         time.sleep(getDelay())
         self.totalresults += self.results
 
@@ -145,13 +145,13 @@ def send_dorks(self):  # Helper function to minimize code reusability.
                 self.results = req.text
                 if search(self.results):
                     try:
-                        if isinstance(search(self.results), bool):
+                        self.results = google_workaround(link)
+                        if isinstance(self.results, bool):
                             print('Google is blocking your ip and the workaround, returning')
                             return
-                        else:
-                            self.results = google_workaround(link)
                     except Exception:
-                        pass
+                        # google blocked, no useful result
+                        return
                 time.sleep(getDelay())
                 self.totalresults += self.results
             except Exception as e:
diff --git a/theHarvester/discovery/linkedinsearch.py b/theHarvester/discovery/linkedinsearch.py
index 5c59a2af..a0b165f8 100644
--- a/theHarvester/discovery/linkedinsearch.py
+++ b/theHarvester/discovery/linkedinsearch.py
@@ -24,13 +24,13 @@ def do_search(self):
             self.results = r.text
             if search(self.results):
                 try:
-                    if isinstance(search(self.results), bool):
+                    self.results = google_workaround(urly)
+                    if isinstance(self.results, bool):
                         print('Google is blocking your ip and the workaround, returning')
                         return
-                    else:
-                        self.results = google_workaround(urly)
                 except Exception:
-                    pass
+                    # google blocked, no useful result
+                    return
         except Exception as e:
             print(e)
         time.sleep(getDelay())
diff --git a/theHarvester/discovery/trello.py b/theHarvester/discovery/trello.py
index 2718139e..c3d1c5ad 100644
--- a/theHarvester/discovery/trello.py
+++ b/theHarvester/discovery/trello.py
@@ -5,6 +5,7 @@
 import random
 import time
 
+
 class SearchTrello:
 
     def __init__(self, word):
@@ -36,9 +37,9 @@ def do_search(self):
                     except Exception as e:
                         print(e)
                 self.totalresults += self.results
-                time.sleep(getDelay()-.5)
+                time.sleep(getDelay() - .5)
             except Exception as e:
-                pass
+                print(f'An exception has occurred in trello: {e}')
 
     def get_emails(self):
         rawres = myparser.Parser(self.totalresults, self.word)
@@ -69,6 +70,3 @@ def process(self):
 
     def get_results(self) -> tuple:
         return self.get_emails(), self.hostnames, self.trello_urls
-
-
-
diff --git a/theHarvester/parsers/myparser.py b/theHarvester/parsers/myparser.py
index d1bfff1e..ddc03c94 100644
--- a/theHarvester/parsers/myparser.py
+++ b/theHarvester/parsers/myparser.py
@@ -50,7 +50,7 @@ def hostnames(self):
         reg_hosts = re.compile(r'[a-zA-Z0-9.-]*\.' + self.word.replace('www.', ''))
         self.temp = reg_hosts.findall(self.results)
         hostnames.extend(self.unique())
-        return hostnames
+        return list(set(hostnames))
 
     def people_googleplus(self):
         self.results = re.sub('</b>', '', self.results)
@@ -145,7 +145,7 @@ def urls(self):
         urls = {match.group().strip() for match in found}
         return urls
 
-    def unique(self):
+    def unique(self) -> list:
         self.new = []
         for x in self.temp:
             if x not in self.new: