Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hang cong » dang cong, hang nong, bang cong
canh chau » canh cha, chinh chau, doanh chau
tinh cua » trinh cua, sinh cua, tinh chat
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
canh cau » can cau, danh cau, canh chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (chiet tach)) - hanh tinh cua hang cong dan ((canh cau) OR (canh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (chiet tach)) - hanh tinh cua hang cong dan ((canh cau) OR (canh chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (chiet tach)) - hanh tinh cua hang cong dan ((canh cau) OR (canh chau))".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chiet tach)) - hanh tinh cua hang cong dan ((canh cau) OR (canh chau))*.