You can enable the search module on the modules page (administer >> modules in Drupal 7 or administer >> extend in Drupal 8 and later ). Note that by default, content search only finds exact matches for the keywords in your content. You can install a contributed stemming or n-gram module to modify this behavior.

function Drupal::url Generates a URL string for a specific route based on the given parameters. This method is a convenience wrapper for generating URL strings for URLs that have Drupal routes (that is, most pages generated by Drupal) using the \Drupal\Core\Url object.

Once logged in, Click Find Content in the upper left corner of Drupal toolbar. You can search for content using many different criteria. Different filter criteria can be combined to narrow a search.

Go to Administer > Configuration > Search and metadata > Clean URLs. Let the automated clean URLs test run. Check the “Enable clean URLs” checkbox. Click "Save Configuration."