function find_contains($html, $selector, $keyword, $index=-1) {


    $ret = array();


    foreach ($html->find($selector) as $e) {


        if (strpos($e->innertext, $keyword)!==false)


            $ret[] = $e;


    }





    if ($index<0) return $ret;


    return (isset($ret[$index])) ? $ret[$index] : null;


}