Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong dao » truong dai, truong cao, truong bo
nhung cong » dung cong, thong cong, hang cong
truong va » truong dai, truong cao, luong va
ho chieu » theo chieu, hoc thieu, doi chieu
ty than » ty thanh, te than, thuy than
tu than » tu thanh, tu nhan, nu than

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