1. How many ethnic groups does Vietnam have ?
2. How much the country's population does Kinh people account ?
3. Where do the other 53 ethnic minority groups mainly inhabit ?
4. Who are the most populated groups among ethnic minorities ?
5. Who has issued specific policies and special treatments in order to enhance the living standards of mountainous people ?
6. What should people make great effort preserve in each ethnic minority group ?
7. Who once boasted a flourishing culture early in the history ?
8. What is the population of the Odu group ?
9. How do the Yao people feel about their elaborate costumes ?
10. How are the traditional cultural identifies of ethnic group ?