Making a Keyword Search

Hello I created a search engine on my site but it only works when you
type the full name of the string. My string name are on average 9
characters long.

  I would like to be able to search one word of the string and then get
the listings to show up that have what you searched in it. This is what
I have:

I alright I think my problem was that I was using to sources of
different information.

I used:
:conditions => ["item_title LIKE ?", "%#{params[:search]}%"])
and it worked.

Thanks Gavin for the help!