Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
cua nhung » va nhung
ho chieu » hoc thieu, doi chieu, mot chieu
canh van » anh van, can van, cach van
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
van cua » vang cua, ban cua, dan cua

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 (theo chieu)) sach - canh van cua nhung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - canh van cua nhung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - canh van cua nhung ((cong dan) or (cong san)) toan cau*.