Here are the correct words to fill in the blanks:

1. **cultural heritage**
2. **information**
3. **ethnic groups**
4. **display area**
5. **a tour**
6. **stilt house**
7. **little bridges**
8. **research**

So the completed text would read:

Vietnam Museum of Ethnology in Hanoi offers an insight into the 54 different ethnic groups of Vietnam in an effort to preserve **(1) cultural heritage**. The museum is full of **(2) information** about traditional Vietnamese ways of life of all the Vietnamese **(3) ethnic groups**. The display hall shows everyday objects representing each ethnic group, a **(4) display area**, a library, and an auditorium. Its indoor exhibition area provides you **(5) a tour**, which includes the Viet, Muong, Tay, Thai, H'Mong, Yao, Khmer, Cham and Hoa ethnic groups. The outdoor **(6) stilt house** presents a variety of Vietnamese homes, including a Tay **(7)** little bridges and a Viet house, each separated by a small stream and reached via **(8) research**. The museum is suitable for children, and all documents and signs are translated into English and French.