Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chiet tach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
khan cap » than cap, khoan cam, phan cac
khan ap » han ap, khan dam

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 (chinh sach)) - thanh trung cua nhung cong tan ((khan cap) OR (khan ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - thanh trung cua nhung cong tan ((khan cap) OR (khan ap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chinh sach)) - thanh trung cua nhung cong tan ((khan cap) OR (khan ap))".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chinh sach)) - thanh trung cua nhung cong tan ((khan cap) OR (khan ap))*.