A clear and useful video on diphthongs and vowel combinations in Vietnamese. This video was originally uploaded on Youtube. Go to www.youtube.com/tiengvietoi to watch our weekly videos. _____________ TVO provides private 1-1, online and group Vietnamese language lessons for foreigners living in and outside of Vietnam. To sign up for lesson, contact us at 84 902 248 953 and [email protected] | Tieng Viet Oi - Vietnamese Lessons