title: Regexp to match any of the substrings
body: <p>How can I make regular expression to match if any of the substrings is at any point of the string?</p>
  <p>I mean if I define substrings &quot;one&quot; and &quot;two&quot; these are a match:</p>
  <ul>
  <li>One</li>
  <li>Two</li>
  <li>Blah one blah</li>
  <li>foo bar two baz.</li>
  </ul>
  <p>So it also needs to be case insensitive. I need this in auto reply app on Android so I can only use one regular expression.</p>