Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
doanh cua » doanh luan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, mot chieu
manh cua » ban cua
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than ban » thanh ban, toan ban, than man

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 (ho chieu)) sach - canh ((doanh cua) or (manh cua)) dung cong ban than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - canh ((doanh cua) OR (manh cua)) dung cong ban than ban.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - canh ((doanh cua) or (manh cua)) dung cong ban than ban*.