title: How to perform a search on 4 basic criteria?
body: <p>I'm developing an application to perform searching on the basis of 4 search criteria:</p>
  
  <ul>
  <li>Keyword (textbox)</li>
  <li>Experience (dropdownlist)</li>
  <li>Location (textbox)</li>
  <li>Functional area (dropdownlist)</li>
  </ul>
  
  <p>There is no mandatory field, so how to perform it?</p>