title: add extra arguments for search query wordpress
body: <p>Here is my code:</p>
  
  <pre><code>global $query_string;
  $posts = query_posts($query_string . '&amp;orderby=meta_value_num&amp;order=DESC&amp;posts_per_page=-1&amp;meta_key=post_views_count');
  while (have_posts()) : the_post();    
  
  endwhile;
  </code></pre>
  
  <p>this code works in taxonomy archive page but in search.php it isn't working no search result. What is wrong with my code ? I just want to add ordering for search results.</p>