Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
thanh tung » thanh cong
tinh nhung » trinh nhung, tinh hung, minh nhung
nhung cong » dung cong, thong cong, hang cong
tung tinh » trung tinh, tung hinh, dung tinh
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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