Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chiet tach, chieu sang, chieu xanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong manh » duong manh, cong thanh, hoang manh
cong danh » cuong danh, cong dan, cong thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chinh sach)) - thanh trung cua nhung ((cong manh) or (cong danh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - thanh trung cua nhung ((cong manh) OR (cong danh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chinh sach)) - thanh trung cua nhung ((cong manh) or (cong danh)) toan ban*.