Watch on 123Movies. It has been nearly 15 years since Do Sanh returned to Vietnam. He is now 29 years old. In the documentary, Sanh talks about his current life, the experiences he has had, and the tough times he had to go through since the filming for director Hans-Dieter Grabe's documentary "Sanh und seine Freunde - Beobachtung einer Rückkehr nach Vietnam" ended in 1974.