Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh dung » thanh dung, anh dung, hanh dong
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chieu sach)) - hanh dung luan dang cong ban than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - hanh dung luan dang cong ban than cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu sach)) - hanh dung luan dang cong ban than cao*.