Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hang cong » dang cong, hang nong, bang cong
thuat cao » thuat co, thuat bao, thuat cam
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
thai cao » tai cao, thoai cac, toan cao

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 - hang ((huong cua) OR (dung cua)) hang cong dan ((thai cao) OR (thuat cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hang ((huong cua) or (dung cua)) hang cong dan ((thai cao) OR (thuat cao))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hang ((huong cua) or (dung cua)) hang cong dan ((thai cao) OR (thuat cao))*.