Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
manh hung » anh huong
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap
hung va » huong va, hung van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - manh hung va nhung ((cong dan) or (cong tac)) ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - manh hung va nhung ((cong dan) OR (cong tac)) ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - manh hung va nhung ((cong dan) or (cong tac)) ((than cau) or (toan cau))*.