Lạng Sơn province
…There are about 40 ethnic groups in Lạng Sơn recognized by the Vietnamese government. Each ethnicity has their own language, traditions, and subculture. Nùng comprised 42.90% of the population, followed by Tày at 36.08% and Kinh at 16.09%. The remainder are mostly Yao, Tanka, Sán Chay and Hmoob. Nungz dialects…