Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cua trung » cua truong, xuan trung, cua nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
chan dau » phan dau, han dau, chan doan
can ban » van ban, toan ban
ban cua » ban quan

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 sach - can ban cua trung ((cong san) or (cong tac)) chan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - can ban cua trung ((cong san) OR (cong tac)) chan dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - can ban cua trung ((cong san) or (cong tac)) chan dau*.