Mysql search for entries that have turkish characters

Question

I've seen Horde's address book application that delivers matches very nicely for searches that do not have the correct characters. For example if searching for 'Garcon' the entry with 'Garçon' is delivered. Or a search for 'Tugla' does also deliver 'Tuğla'. I wonder if this is own code or can Mysql handle this. If yes, how can this be achieved.