Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong va » truong dai, truong cao, truong dao
cong sang » cong san, cong vang, cong bang
cong lang » cong vang, cong luong, cong quang
ho chieu » theo chieu, hoc thieu, doi chieu
than cap » khan cap, thanh lap, thanh cac

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