Perhaps you should try some spelling variations:
tieu sang » chieu sang, tieu dung, tiem nang
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
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: theo tieu sang - anh tang cua nhung ((cong tan) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - anh tang cua nhung ((cong tan) OR (cong san)) toan cao*.