Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
huong cong » luong cong, cuong cong, xuong cong
duong cong » dung cong, luong cong, duong trong
sang than » cang thang, dang thanh, sang tao
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
than cap » khan cap, thanh lap, thanh cac

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

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