Tran Hoang Yen Phuong and Nguyen Van Su won golds in the junior female 53kg and junior male 68kg categories, respectively.
It is the first time Su has won international honours. Phuong on theother hand won a bronze medal at the World Women's Karate Cup in Parisin June.
Viet nam 's Tang Thi Hoa also won a gold medal in the women's 59kg category and two bronzes in the cadets' events.
Vietnam finished the tournament, which ended on August 8, in fourth place, behind Iran , Japan and Kazakhstan./.