Perhaps you should try some spelling variations:
trung thanh » truong thanh
thanh trung » thanh tung
thanh duong » thanh huong, thanh cuong, thanh vuong
duong cong » dung cong, luong cong, duong trong
ho chieu » theo chieu, hoc thieu, mot chieu
cong san » cong tac
san van » tan van, luan van, tran van

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) or (toc thieu)) sach - thanh trung thanh duong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) sach - thanh trung thanh duong cong san van ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (toc thieu)) sach - thanh trung thanh duong cong san van ban*.