When it comes to setting-up search for a Drupal site, out-of-the-box Drupal comes with a primitive built-in search engine. The out-of-the-box search engine can be sufficient if we are running a Content Management System (CMS) for a small blogging site. There are some basic customization and ranking settings that can be tailored; e.g. add more weight to blogs with more comments or recently submitted blogs or content. And it is neat because Drupal search respects node access permissions.
 
But not all...