An Giang and Nam Dinh topped their respective groups, F and A, to win final round berths at the U.21 National Football champion to be held in Gia Lai in October.
An Giang beat Kien Giang 3-1 on Sunday in the Mekong Delta while Nam Dinh fought to a 0-0 tie with Hanoi ACB on Monday in the northern province of Nam Dinh.
Lam Hai Dang, Le Chi Thanh and Tuan Anh scored the goals for An Giang while Danh Phen pulled a consolation goal for Kien Giang.
The qualifying round matches of the Thanh Nien-sponsored football tournament were exciting all the way to the final minutes.
With two byes for hosts Hoang Anh Gia Lai and reigning champs Da Nang to the final round, the 30 other teams had to compete very hard in six groups from September 5 to 20.
The qualifying rounds presented such tough competition that Group D hosts Khanh Hoa, Group E hosts Ho Chi Minh City and Group F hosts Kien Giang failed to advance.
Eight qualified teams will compete in Pleiku Town, capital of the Central Highlands province of Gia Lai, from October 7-17, and the best four teams will qualify for the international U.21 football tournament.
The international event will take place at Ho Chi Minh City's Thong Nhat Stadium from October 23-31. It is co-organized by the Vietnam Football Federation and Thanh Nien, and sponsored by the newspaper.