Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hang
thanh va » hanh va, thanh ha, thanh ve
ban hanh » ban hang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh ((thanh va) OR (thanh van)) nhung cong ((ban thanh) OR (ban hanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - canh ((thanh va) or (thanh van)) nhung cong ((ban thanh) OR (ban hanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh ((thanh va) or (thanh van)) nhung cong ((ban thanh) OR (ban hanh)) cau*.