Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trung cap » truong cao, trung tam
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
cong ban » cong bang, cong san, cong tan
than cap » khan cap, thanh cac, than cua

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 ((dung cua) OR (trung cap)) nhung cong ban ((than cap) OR (thanh lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((dung cua) or (trung cap)) nhung cong ban ((than cap) OR (thanh lap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((dung cua) or (trung cap)) nhung cong ban ((than cap) OR (thanh lap))*.