Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
thanh dung » thanh duong, thanh tung, thanh hung
nhung cong » dung cong, thong cong, hang cong
cho nhung » cho chuong, cua nhung, thi nhung
cong ban » cong bang, cong san, cong tan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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

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