After his early retirement, Đình Triệu continued playing in amateur teams. He impressed Bình Phước's manager Nguyễn Minh Phương during a local football tournament in Vũng Tàu, who later demanded the club to sign him.[2] In 2020, Đình Triệu made his comeback as a professional footballer at the age of 28 after signing for V.League 2 club Bình Phước.[4]
Hải Phòng
Đình Triệu joined V.League 1 side Hải Phòng in 2022. Although he was expected to be the back-up of Nguyễn Văn Toản, Đình Triệu quickly became the starter keeper of the team after his solid performances.[5] With 6 clean sheets after 20 league games, Đình Triệu played a big role on helping Hải Phòng finish as league runners-up that season and was awarded the best goalkeeper title.[6]
In June 2023, Đình Triệu was called up to the senior Vietnam squad for first time, for friendlies against Hong Kong and Syria.[8] He made his debut against Palestine on 11 September 2023 at the Thiên Trường Stadium, Nam Định. He kept a clean sheet in the match, which ended 2–0 to Vietnam.[9]
In January 2024, he was included in Vietnam's 26-men squad for the 2023 AFC Asian Cup.[10]