Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong lang » cong vang, cong luong, cong quang
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
cong tac » cong ty
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 chu sach - thanh trung cua thong ((((cong san) or (cong tac))) or (cong lang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - thanh trung cua thong ((((cong san) OR (cong tac))) OR (cong lang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - thanh trung cua thong ((((cong san) or (cong tac))) or (cong lang)) toan ban*.