The Vietnamese delegation finished third at the Intel International Science and Technology Fair (Intel ISEF), which took place from May 13-19 in Los Angeles, the United States.
The Ministry of Education and Training welcomed the delegates home on May 24 in Hanoi.
The Vietnamese team bagged five awards, including third prize for a prosthetics arm project by Pham Huy, an 11th grader from a high school in the central province of Quang Tri.
The others were four fourth prizes in system software, chemistry and embedded software.
The Intel ISEF is the biggest international pre-college science competition, attracting some 1,800 high school students around the world every year to compete in 22 categories.
Vietnamese students have attended the event since 2012./.