Searching in text or blob field

Hi there I try to create a dynamic content webpage with mysql. I store my content in database like this ------------------------------------------------------------------------ Field id | topic | Content | date ------------------------------------------------------------------------ type | int varchar text or blob date written and I need a search engine inside my webpage . I can search by topic but I need a search by content too. I think it's not good idead to seach like search topic because it 's a large field. It can solve my ploblem if I use index table to store keyword and id of my content like this ID | Keyword but English is not use in my content .Asian lang. is not support method to find keyword and keep it in to index table So, anyone have anthor method to solve this ploblem ? Thanks Tongdee Sorry for my ugly English.