The win booked Vietnam a spot in the final against Japan, who edged out Thailand 2-1 in other semi-final earlier on the day.
Playingwith the support of 40,000 fans at the National My Dinh Stadium, thehosts mounted an aggressive start to the semi-final from the startingwhistle.
Three minutes into the game, Quang Hai failed to surprise Myanmar goalie Myo Min Latt with a close range attack.
Vietnameseduo Nguyen Cong Phuong and Nguyen Van Toan showed good teamwork in the13th minute within the 18-yard box, with Toan's shot skimming the post.
Thevisitors responded in the 18th minute when Than Paing fired a shot from25 metres out, but was blocked by Vietnamese goalie Van Truong.
Vietnamesestriker Nguyen Van Long failed to consolidate a chance in the 22ndminute when he fired a powerful shot from the 18-yard-box. The Myanmarkeeper managed to skim the shot with his finger, sending it over thebar.
Midfielder Nguyen Tuan Anh later sparked cheers from the40,000-seat stadium when he curved an inside shot into the high cornerof the net in the 31st minute.
Myanmar midfielder Maung Maung Soe had a clear chance three minutes later, with a close range shot going wide.
Vietnam'sLuong Xuan Truong responded by doubling the score in the 36th minutewith a perfect free kick into the low corner of the net.
Striker Nguyen Van Toan kept the crowd on their seats as he steered a shot wide a mere two minutes before the break.
However, Toan stormed into the second half with a goal only five minutes after the opening whistle.
Thedecisive 3-0 lead saw a slight drop in the Vietnamese defence, with topstriker Aung Thu seizing a chance to score at the 53rd minute.
Thevisiting side struggled to consolidate chances to even the score, withPhan Van Long sealing Vietnam's win with a skilful shot to the backcorner of the net.-VNA