Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
can van » cac van, can ban, tan van
van cua » vang cua, ban cua, dan cua

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

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