The Laotians use Vietnamese names, which is completely unrealistic, because they are very different from each other in culture, the languages even belong to different language groups. Vietnamese is an Austroasiatic language. Lao is a Thai-Kadai language.
Here is an example of the components of Lao names:
Boun
Vong
Phong
Singh
Chanh
Dao
Dara
Pha
Kham
Mali
Ngeun
Racha
savanh
Seng
Phu
Sri
Keo
Vora
Chai
Tong