Tool: Typing errors -> "Did you mean"

"Typing errors" are a very common problem in optimizing website-search.

I think it should be very easy to implement in SimpleSearch a feature "Did you mean" like in Google suggesting the correct spelling of the misspelled search term and showing the first results for the corrected search term.

For such a tool we would need a database containing common misspellings and the corresponding correct word. Based on such a database a if-function has to check if the inserted term is covered by the database to suggest the correct results.

Does anybody know which code-lines have to be changed in which way in SimpleSearch for this purpose? Unfortunately I am not very skilled in php-coding...

Letti