Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
hung thang » cang thang, hung tran
thang van » tang van, thanh van, thong van
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong tac » cong ty
tran cau » tran chau, ran cau, tra cau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (chiet tach)) - hung thang van dung cong tac ((tran cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chiet tach)) - hung thang van dung cong tac ((tran cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chiet tach)) - hung thang van dung cong tac ((tran cau) or (toan cau))*.