Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong sat » cong suat, cong hat, cong nhat
cong san » cong tac
hang dau » hang va
hang tai » hang va, dung tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh trung cua nhung ((cong sat) OR (cong san)) ((hang dau) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung cua nhung ((cong sat) OR (cong san)) ((hang dau) OR (hang tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung cua nhung ((cong sat) OR (cong san)) ((hang dau) or (hang tai))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung cua nhung ((cong sat) OR (cong san)) ((hang dau) or (hang tai))*.