360         string $referer,  argument
366         $searchEngine = new SearchEngines($referer);
382         string $referer,  argument
388         $searchEngine = new SearchEngines($referer);
404         string $referer,  argument
410         $searchEngine = new SearchEngines($referer);
422         string $referer,  argument
428         $searchEngine = new SearchEngines($referer);
440         string $referer,  argument
446         $searchEngine = new SearchEngines($referer);
477         $referer = 'https://WWW.GOOGLE.COM/search?q=case+test';
491         $searchEngine = new SearchEngines($referer);
503         $referer = 'https://www.google.com/search?q=plus+encoded+query';