Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
cong luan » cong tuan, dong luan, cong luong
tong luan » tang luan, dung luan, hang luan
cong hang » cong thang, cong hung, cong vang
cong lang » cong vang, cong luong, cong quang
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - thanh ((cong luan) or (tong luan)) nhung ((cong hang) OR (cong lang)) hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh ((cong luan) OR (tong luan)) nhung ((cong hang) OR (cong lang)) hang dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - thanh ((cong luan) or (tong luan)) nhung ((cong hang) OR (cong lang)) hang dau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - thanh ((cong luan) or (tong luan)) nhung ((cong hang) OR (cong lang)) hang dau*.