Yes.
But many US and other "Western" sellers will be cautious about shipping there.
Also shipping overseas, by Air Mail (which you want) and with tracking (which the seller wants), can be expensive.
BEFORE bidding, always ask the seller if he ships to Thailand and for an exact cost for Air Mail shipping.
As a general tip, be very careful with spelling and grammar, because many overseas scammers are caught by their poor language skills. You can tell the seller that you are a Canadian living overseas. Your account is registered in Canada to back your story up.