title: Doctrine MongoDB ODM search query
body: <p>I want to create a full text search with mongodb. How can I create the following query. With the query builder API?</p>
  
  <pre><code>db.Item.runCommand("text", {search: "Awesome"});
  </code></pre>
  
  <p>Is that possible? Or how can I execute a native query.</p>
  
  <p>Thanks for help.</p>