Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
chan nan » chan nhan, chang nang, chan doan
can ban » van ban, toan ban

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