Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thanh tung » thanh cong
dung cong » dung trong
cap dung » ap dung, cao dung, chan dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu

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 sach) or (chieu sang)) - ((thanh trung) or (thanh tung)) cap dung cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - ((thanh trung) OR (thanh tung)) cap dung cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - ((thanh trung) or (thanh tung)) cap dung cong tan phan cau*.