We think that we have the right search function! But we don't have. Lets see I what I am trying to say.
For example:
You are trying to find a tutorial about javascript validation. when you search "javascript validation" results comes "0". But they have tutorial about validation and they stored it as "JavaScript Form Validation". If you want to see it at search result page you must write in order as it is in database or indexes.. let's see how we can get correct search results.