docs: def more_search(self, more_page):
          """Method to add more result to an already exist result.
  
          more_page determine how many result page should be added
          to the current result.
          """
          next_page = self.current_page + 1
          top_page = more_page + self.current_page
          for page in range(next_page, (top_page + 1)):
              start = "start={0}".format(str((page - 1) * 10))
              url = "{0}{1}&{2}".format(self.google, self.query, start)
              self._execute_search_request(url)
              self.current_page += 1