title: pysolr search result different from apache solr cloud result with the same query
body: <p>I have a query in pysolr and which is weird that the result is different from what I query in solr cloud.</p>
  <p>In pysolr</p>
  <pre><code>query=&quot;filename:(articles\\56.txt OR articles\\400.txt OR articles\\304.txt) ^20 AND filtered:(empire OR collapse OR Alexander OR 's OR conquests)^20 AND label:(TIME OR DATE)^20 OR lemmatized:(empire,collapse,Alexander,'s,conquest)^10 OR root: (collapse) ^10
  solr.search(q=query, **{'q.op':'AND'}, start=0, rows=10)&quot;
  </code></pre>
  <p>This can't give any result in pysolr</p>
  <p>But when I input the query in solr cloud, it actually gives me the result.</p>
  <p><a href="https://i.stack.imgur.com/h8RLq.jpg" rel="nofollow noreferrer">Solr Cloud result</a></p>
  <p>This is really frustrating, can anyone help me with this?
  Or pysolr's q.op is not work the same as solr cloud's q.op?
  Is that possible?</p>