The ethnic group I ike best is The Bru van kieu.The bru van kieu has thr population of 74,500 people.They live in Quang Binh,Quang Tri,Thua Thien Hue,...The langues belong to the Mon khmer group.They are a good farmer.They are growing rice,terraced fields,raising cattle and poultry,...The most oh festival is ceremoney held before sowing seeds