docs: def _execute_search_request(self, url):
          """method to execute the query to google.
  
          The specified page and keyword
          must already included in the url.
          """
          try:
              self.request_page = requests.get(url)
          except requests.ConnectionError:
              print("Connection to {0} failed".format(str(url)))
          self.current_html_page = self.request_page.text
          soup = BeautifulSoup(self.current_html_page, "html5lib")
          results = soup.find_all('a', class_=False)
          links = []  # store the final url of search result, 10 links
          # this loop filter the search result links inside the search page
          for target in results:
              # filter only link from search result should be appended
              if target.get('href').find("/url?q") == 0 \
                      and not \
                      target.get('href').find(
                              "/url?q=http://webcache.googleusercontent.com"
                      ) == 0 \
                      and not \
                      target.get('href').find("/url?q=/settings/") == 0:
                  start_index = target.get('href').find('http')
                  end_index = target.get('href').find('&sa')
                  # slice the desired url into ideal link, and append
                  # it to reserved list variable
                  links.append(target.get('href')[start_index:end_index])
          # this loop inspect if the current page is the final page
          for href in results:
              fnl = 'repeat the search with the omitted results included'
              if href.get_text() == fnl:
                  self.is_final_page = True
              else:
                  pass
          # send the final url link to class reserved variable
          for link in links:
              self.search_result.append(link)