Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, cong dong
than ban » thanh ban, toan ban, than man
tang va » trang va, tang van, thang va
va hang » van hang, va nang, va lang

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 - anh tang va hang ((cong dan) or (huong dan)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - anh tang va hang ((cong dan) OR (huong dan)) than ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - anh tang va hang ((cong dan) or (huong dan)) than ban*.