Perhaps you should try some spelling variations:
dong cong » duong cong, dung cong, dang cong
chu sang » chu bang, chieu sang, chuc nang
thu sang » thu hang, thu san, thu bang
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dong » chua dong, cua cong, cua dang
cong tac » cong ty
tac tren » rac tren, tai tren, tap tren
tren cau » tren ca, tren cay, tren tau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sang) or (thu sang)) - anh tang cua dong cong tac tren cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sang) OR (thu sang)) - anh tang cua dong cong tac tren cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu sang) or (thu sang)) - anh tang cua dong cong tac tren cau*.