Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tran tuan » tran xuan, tran thanh, tranh luan
nho hieu » nha hieu, nho sieu, nhu hieu
nha dieu » nhan dieu, nhan dien, khoa dieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((nho hieu) OR (nha dieu)) lang - hanh ((tran tuan) OR (tran quang)) nhung cong dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nho hieu) or (nha dieu)) lang - hanh ((tran tuan) OR (tran quang)) nhung cong dan than cao~".
• Adding a wildcard symbol may retrieve word variants: ((nho hieu) or (nha dieu)) lang - hanh ((tran tuan) OR (tran quang)) nhung cong dan than cao*.