1. The villagers are trying to learn English. They can communicate with foreign customers. (in order that)
The villagers are trying to learn English in order that They can communicate with foreign customers.
2. We ate lunch. Then we went to Non Nuoc marble village to buy some souvenirs. (after)
After We had  eaten lunch,  we went to Non Nuoc marble village to buy some souvenirs
3. This hand-embroidered picture was expensive. We bought it. (even though)
We bought This hand-embroidered picture even though it was expensive
4. This department store is an attraction in my city. The products are of good quality. (because)
This department store is an attraction in my city because The products are of good quality
5. This is called a Chuong conical hat. It was made in Chuong village. (since)
. This is called a Chuong conical hat since It was made in Chuong village.