Career
He was the captain of his club He was famous for his passing, close control, and free kicks, and was regarded as one of the best attacking midfielders in Vietnam. He was capped several times by Vietnam national team
However, he did not see his action with the success of the national team because the preferred tactics played by Vietnam national team at that time was 5-3-2, with Nguyen Hong Son as the favorite choice for the middle position in the midfield.
Hieu"s notable performance was in Seagames 19, where he came in as a substitution and scored 2 goals in the match with Laos after the Vietnamese led by 0-1 after the first half.