Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » ho chieu, theo chu, thi chieu
hanh trung » hanh trang, manh trung, danh trung
nhung cong » dung cong, thong cong, hang cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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