Perhaps you should try some spelling variations:
thanh trung » thanh tung
chap thuong » chan thuong, phan thuong, pham thuong
thuong cong » thong cong, thuong con, thuong dong
theo chieu » ho chieu, theo chu, thi chieu
trung chap » trung cap, trung ha, tranh chap
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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) or (theo tieu)) sach - thanh trung chap thuong cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - thanh trung chap thuong cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sach - thanh trung chap thuong cong tac than cau*.