Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
dap nhung » vap nhung, va nhung, dap ung
ho chieu » theo chieu, hoc thieu, doi chieu
tung dap » tung dan, trung dai, tuong dan
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
phan cau » phan dau, phan cac, phan tu
toan ban » van ban

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 tung dap nhung cong san ((((than cap) OR (phan cau))) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung dap nhung cong san ((((than cap) or (phan cau))) or (toan ban))*.