For many years, Vũ Khanh performed in cafes, clubs, and restaurants - before he was able to sing in the professional Ritz tea room (1978).
[1] He started to come into people's attention after performing the song "Cô hàng nước" at a music festival in San Diego (USA) in 1978.
Vũ Khanh's best co-star is Ý Lan, the daughter of singer Thái Thanh.
Composer Từ Công Phụng rated him as one of the best male oversea vocalists: "In terms male singers overseas, I currently recognize two talented and attractive vocalists, Tuấn Ngọc and Vũ Khanh.
"[1] Many people compare Vũ Khanh with the male singer Sĩ Phú, due to similarities in their voice and performing style.