Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong cau » huong cau, phuong cham, phuong cach
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
cong ban » cong bang, cong tan, cong dan
cong san » cong tac

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 nhung ((cong ban) or (cong san)) phuong cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - thanh trung cua nhung ((cong ban) OR (cong san)) phuong cau.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - thanh trung cua nhung ((cong ban) or (cong san)) phuong cau*.