write a long paragraph to introduce about the cultural groups of vietnam

The Kinh or Vietnamese people account for 80.41% of the national population. Vietnamese people have their own language and writing. Vietnamese belongs to the Viet Muong language group. About the Kinh costume is also quite diverse with a variety of costumes such as scarves, skirts, pants, hats ... the accompanying jewelry. Vietnamese houses are considered very important. The construction of each region also varies. Due to differences from natural conditions and climate.