The films are action flick 578: Phat đan cua ke dien (578 Magnum) and Nhung dua tre trong suong (Children of the Mist).
According to the website Deadline, voters had a choice of a total of 27 animated features, along with 144 documentary features and international features from 92 countries.
Shortlists for the Documentary and International Feature category will be announced on December 21, with Oscar noms set to be unveiled on January 24.
This year’s ceremony is set to be broadcast on March 12 from the Dolby Theatre at Ovation Hollywood.
Vietnam’s 578 Magnum will compete in the Best International Feature Film award category.
Directed by Luong Dinh Dung, the film tells the story of a father who works as a driver of a container truck hunting down a group of criminals who kidnaped his daughter.
Meanwhile, Children of the Mist will compete in the Documentary Feature Film award category.
Directed by Ha Le Diem, the 90-minute long documentary is narrated by a 12-year-old ethnic H’Mong girl who resides in the northern town of Sa Pa.
It discusses the clash between ancient customs and modern values in a place where children from a traditional culture also have access to the outside world.