Oanh topped the women's 3,000m steeplechase event with a time of 10 minutes 27.29 seconds.
Thetime is faster than her time recorded at the Southeast Asian Games inMyanmar last year, where she took home a silver medal with a time of10:30.29.
Hoang Thi Ngoc also brought home a bronze medal in the women's 400m with a time of 55.36 seconds.
Withone gold and one bronze medal, Vietnam ranked 10th out of the 23nations competing. China took the lead with 12 gold medals, 10 silverand two bronze.
Japan came in second with 11 gold medals, fivesilver and five bronze, with Qatar in third place with six gold, twosilver and one bronze.
The top athletes will partake in the IAAF World Junior Championships on July 22-27 in Eugene, Oregon, in the US.-VNA