unfortunately we do not ship print books to Vietnam at this time, but if you would like to purchase ebooks from us, please send us an email to email@example.com and one of our customer service reps can give you the info on that type of order.
If you are set on getting a print book, we do have distributors and bookstores more local to your region which may be able to order the books for you.
Here it the link for the Asian bookstores
and our International distributors in that region:
Sorry for the inconvenience.
Customer Service Rep,