[Izzmo]

That's very hard to do, and it would have to be in a "learning mode" for a long time. You would have to basically create an AI so to speak. Learning how users misspell different words and then associate them to their right spellings. That's just single words. You need to then move to sentences/more than one words.

The best thing I would have to offer u is store a list of known/common/popular search terms in a database, then do a "find as you type" feature. That's very common now a days and can also be a HUGE help!