Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
doi chieu » doc hieu, doi chi, mot chieu
chua dong » cua dong, ha dong, hoa dong
thang ban » hang ban, tang ban, thanh ban
ho chieu » theo chieu, hoc thieu, mot chieu
huy dong » ha dong
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) sach - canh tranh ((chua dong) or (huy dong)) cang thang ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - canh tranh ((chua dong) OR (huy dong)) cang thang ban can.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - canh tranh ((chua dong) or (huy dong)) cang thang ban can".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - canh tranh ((chua dong) or (huy dong)) cang thang ban can*.