Would you like to be able to control which post or pages must be exclued from searches on your WordPress blog?

If yes, this article will probably help you a lot.

To achieve this, just simply paste the following code on the functions.php file from your theme.

In this example, your wordpress posts with IDs 1 and 10 will be excluded from your wordpress blog’s search results:

// Exclude these page ids from search results
function my_search_filter($wp_query) {
   if ($wp_query->is_search) {
      $wp_query->set('post__not_in', array(2028,1977,185,181) );
   }
   return $wp_query;
}
add_filter('pre_get_posts','my_search_filter');