title: Lucene sort by score and then modified date
body: <p>I have three fields in my document </p>
  
  <ol>
  <li>Title </li>
  <li>Content </li>
  <li>Modified Date</li>
  </ol>
  
  <p>So when I search a <code>term</code> it's giving by results sorted by <code>score</code></p>
  
  <p>Now I would like to further sort the results with same score based upon on <code>modifiedDate</code> i.e. showing recent documents on top with the same score.</p>
  
  <p>I tried sort by score, modified date but it's not working. Anyone can point me to the right direction? </p>