Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh tang » hanh trang, anh tang, hanh mang
tong cong » trong cong, cong cong, dung cong
ban thanh » ban hanh
tang cua » mang cua, hang cua, tang luan
cua tong » cua cong, cua dong, cua nong
ban hang » ngan hang

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: theo ((chiet tach) OR (chieu sach)) - hanh tang cua tong cong ((ban thanh) OR (ban hang)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) or (chieu sach)) - hanh tang cua tong cong ((ban thanh) OR (ban hang)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (chieu sach)) - hanh tang cua tong cong ((ban thanh) OR (ban hang)) cau*.