[2] The Nyaw/Nyo spoken in central Thailand and western Cambodia is not the same as Tai Yo.

These two names correspond to the following two towns in Nghệ An Province, Vietnam, located near Quỳ Châu (Chamberlain 1998).

Tai Mène appears to be related to Tai Pao (paaw 4 < *baaw A),[6] whose speakers claim to have originated from Tương Dương District, Nghệ An province, Vietnam (Chamberlain 1991).

Tai Mène or related languages may have also been spoken in Thường Xuân District, Thanh Hóa, Vietnam by the Yo (Do) people (Robequain 1929).

The Vietic languages Liha, Phong, Toum, Ayoy, Maleng, and Thaveung are spoken nearby.