title: LUIS.ai returns different intents for almost similar utterances
body: <p>I use LUIS as a Language Understanding Service for our Chat Bot built with Microsoft Bot Framework.
  And I observe the strange behavior:</p>
  <ol>
  <li>I added a string <em>&quot;what is my deductible?&quot;</em> to the intent <em>&quot;Deductible&quot;</em>.</li>
  <li>A user sends <em>&quot;what is my deductible&quot;</em> string ---&gt; LUIS returns the desired intent &quot;Deductible&quot;. <strong>OK!</strong></li>
  <li>A user sends <em>&quot;what is my deductibl?&quot;</em> OR <em>&quot;what is my deductible&quot;</em> (misspelling in the first case, lack of a question mark in the second case) ---&gt; LUIS returns some other intents (which are not related to deductible AT ALL). <strong>NOT OK!</strong></li>
  <li>Also, I don't see any utterances like those in &quot;Review Endpoint Utterances&quot; section so I could reassign the utterances to the desired intent. <strong>NOT OK AT ALL!</strong></li>
  </ol>
  <p>Any ideas how to fix it, how to improve the recognition for utterances with <strong>misspellings</strong>, <strong>lack of symbols</strong> and also - it's very important - with <strong>synonyms</strong> of the words?</p>