Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
phong cong » phong chong, thong cong, chong cong
cac phong » cac phuong, cac chuong, chau phong
ho chieu » theo chieu, hoc thieu, doi chieu
tung cac » dung cac, vung cac, cung cac
cong dan » cong san, cong tan, huong dan
chan cao » chan cho, chat cao, toan cao
chay cao » cay cao, chat cao, nha cao

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 tung cac phong cong dan ((chan cao) or (chay cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung cac phong cong dan ((chan cao) OR (chay cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung cac phong cong dan ((chan cao) or (chay cao))*.