Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua tong » cua cong, cua dong, cua nong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
tran tap » toan tap, tran tan, tran tuan

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 ((chiet tach) OR (chinh sach)) - hanh tang cua tong ((cong tan) OR (cong san)) tran tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chiet tach) or (chinh sach)) - hanh tang cua tong ((cong tan) OR (cong san)) tran tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (chinh sach)) - hanh tang cua tong ((cong tan) OR (cong san)) tran tap*.