Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
trung cap » trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
nong dan » nong san, nguong dan, huong dan
thai cao » tai cao, thoai cac, thuat cao

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 cap) OR (truong cao)) thang ((cong dan) or (nong dan)) thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trung cap) OR (truong cao)) thang ((cong dan) OR (nong dan)) thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((trung cap) OR (truong cao)) thang ((cong dan) or (nong dan)) thai cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trung cap) OR (truong cao)) thang ((cong dan) or (nong dan)) thai cao*.