The ethnic minorities have uneven development levels. In the Northern midland and mountainous regions, ethnic groups such as Muong, Thai, Tay, and Nung engage in paddy farming techniques. They also grow upland rice and raise cattle and poultry. Some go hunting, fishing and collecting while others make sophisticated traditional handicrafts. Ethnic minorities living in the South are more separated. Except for the Cham, Chinese and Khmer people living in the Central coast and Southern Viet Nam which have high development level, most ethnic minorities living in the Central Highlands reside in clusters of hamlets and subsist mainly on nature. All ethnic groups have their own diverse and unique cultures. Beliefs and religions of Vietnamese ethnic groups are also disparate.