Based on the provided passage, here's how you can fill in the blanks:

1. **cultural heritage**
2. **information**
3. **ethnic groups**
4. **display area**
5. **little bridges**
6. **stilt house**

So the complete passage would look like this:

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Vietnam Museum of Ethnology in Ha Noi offers an insight into the 54 different ethnic groups of Viet Nam in an effort to preserve **(1) cultural heritage**. The museum is full of **(2) information** about traditional Vietnamese ways of life and the Vietnamese **(3) ethnic groups**. The display hall shows everyday objects representing each ethnic group. A **(4) display area** contains a library and an auditorium. Its indoor exhibition area provides you **(5) little bridges** 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 house and a Viet house, each separated by a small stream, and reached by **little bridges**. The museum is suitable for children, and all documents and signs are translated into English and French.

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Feel free to adjust any specific words or phrases if needed!