multiple words search query advise

Hi, We have an a auction like site, now we have to add a search feature to the site, the searching will be done for 2 fields: subject and description (ad_sub, ad_text). Since i have never done this before, I would appreciate some advise on how to do it. I was thinking of getting the search string, running an explode() on it and then doing a LIKE sql query to get the results on each word...but then that would add up to quite a bit if even 5 words were written (5 queries each for the subject and 5 for the text) Any help in the form of advise, links, code, examples etc would be appreciated. After googleing a bit I have gotten a bit of help from some of the pages but not much, one very helpful bit of advise i got was to ignore works like: the, a, in as they are too common...if you have anymore to add, please feel free to write it. Thanks in advance, Ryan -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005