Translation:I buy a computer or a book.
according to my vietnamese textbook, "hoặc" can only be used in affirmative sentences, and "hay" can be used either affirmatively or in questions.
so to clarify. hay can be used in "this or that", as well as "this nor that". but hoặc can only be used in "this or that". correct?
Yes, there are two words. "Hay" is used more in the south, hoặc in the north.