Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
quan nhung » cua nhung, luan chung, quang hung
doi chieu » doi chi, ho chieu, mot chieu
qua nhung » cua nhung, qua chung, chua nhung
doc hieu » toc thieu, hoc thieu, hoc hien
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: ((doi chieu) OR (doc hieu)) sach - hanh trinh ((quan nhung) or (qua nhung)) cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sach - hanh trinh ((quan nhung) OR (qua nhung)) cong san than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) sach - hanh trinh ((quan nhung) or (qua nhung)) cong san than cap".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) sach - hanh trinh ((quan nhung) or (qua nhung)) cong san than cap*.