Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
trung cua » trung tuan, trung cap, dung cua
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
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 sach) or (chiet tach)) - thanh ((trung cua) OR (truong cua)) nhung cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chiet tach)) - thanh ((trung cua) OR (truong cua)) nhung cong ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chiet tach)) - thanh ((trung cua) OR (truong cua)) nhung cong ban than cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chiet tach)) - thanh ((trung cua) OR (truong cua)) nhung cong ban than cau*.