Stores in another country might offer several choices for keyboards, but in Thailand they would normally certainly offer one with printing in both Thai and English.
Nobody in these forums represents Apple or any store, so if you want to buy something you really need to contact stores directly yourself, or consult their web pages.
Hi, does this means that the computer functions corectly in America, for instance? and do you know if the software can be in english or in panish? thanks
Yes, the computer will function the same everywhere. The language can be changed to any of the 30 listed in the tech specs very quickly via the preferences settings.