Perhaps you should try some spelling variations:
nhien sang » chieu sang, nhiet nang, nhieu tang
khien bang » phien ban, khien dong
hanh tran » hanh trang, thanh tran, hanh tram
tong cong » trong cong, cong cong, dung cong
tran van » luan van
van tong » van thong, van trong, van tuong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: tien ((nhien sang) or (khien bang)) - hanh tran van tong cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tien ((nhien sang) OR (khien bang)) - hanh tran van tong cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: tien ((nhien sang) or (khien bang)) - hanh tran van tong cong dan toan tap*.