Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
cua tong » cua cong, cua nong, cua song
cua dong » chua dong, cua cong, cua dang
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, khoan cam
phan cam » phan cac, phan cau, khoan cam

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 - anh huong ((cua tong) or (cua dong)) cong tan ((khan cap) or (phan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - anh huong ((cua tong) OR (cua dong)) cong tan ((khan cap) OR (phan cam)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - anh huong ((cua tong) or (cua dong)) cong tan ((khan cap) or (phan cam))*.