Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, kieu tinh
chieu sang » chieu sach, chieu xanh, hieu lang
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
chau tinh » cuu tinh, ha tinh, cua tinh
nang luan » tang luan, hang luan, nang quan
van nang » van quang, van ban, van dong
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, 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: doi ((((chieu tinh) or (chau tinh))) or (chieu sang)) - van nang luan chung cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu tinh) OR (chau tinh))) OR (chieu sang)) - van nang luan chung cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: doi ((((chieu tinh) or (chau tinh))) or (chieu sang)) - van nang luan chung cong tac than cau*.