The No 1 seed duo beat Gary Kushnirovich of the US and Vu Artem of Vietnam 6-4, 6-2 in a 73-minute match.
They will play Vietnamese wildcard pair Le Cong Tien and Trinh Linh Giang who defeated Chinese Gong Xiao and Li Zhao-tai 6-3, 6-3 on October 31.
|Ly Hoang Nam in the second round of the Vietnam Men’s Futures F9 event. — Photo 24h.com.vn
In the singles event, Vu Artem also lost 2-6, 3-6 to Indian Sasi Kumar Mukund, No 1 seed.
No 2 Karol Drzewiecki of Poland overcame American Patrick Davidson 6-3, 7-5.
The tournament is the last of a series of nine Men’s Futures events held in Vietnam.
A pocket of US$10,000 and bonus points are available for the winners.