Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thanh tung » thanh cong
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
tran tap » toan tap, tran tan, tran tuan

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: theo ((chieu xanh) OR (chieu sang)) - thanh tung cua nhung ((cong tan) OR (cong tac)) tran tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sang)) - thanh tung cua nhung ((cong tan) or (cong tac)) tran tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sang)) - thanh tung cua nhung ((cong tan) or (cong tac)) tran tap*.