Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
phung cong » nhung cong, phong cong, nhung chong
doi chieu » doc hieu, doi chi, ho chieu
tuong va » truong va, thuong va, luong va
cong dan » cong san, cong tan, huong dan
chan cao » chan cho, chat cao, toan cao
chay cao » cay cao, chat cao, nha cao
tung va » trung va, dung va, vung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh ((tung va) OR (tuong va)) phung cong dan ((chan cao) or (chay cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((tung va) OR (tuong va)) phung cong dan ((chan cao) OR (chay cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh ((tung va) OR (tuong va)) phung cong dan ((chan cao) or (chay cao))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((tung va) OR (tuong va)) phung cong dan ((chan cao) or (chay cao))*.