Search API path make SEO friendly
I managed to do that with the following code:

/**
  * Implements hook_views_pre_view().
  */
 function hook_views_pre_view(&amp;$view, &amp;$display_id, &amp;$args) {
   /* Search page view */
   if ($display_id == 'search_page' &amp;&amp; !empty($args[0])) {
     $args[0] = strtr($args[0], '-', ' ');
   }
}


You should also adjust the search form ofcourse..