Perhaps you should try some spelling variations:
chiet tach » chieu sach
cong trong » cong thuong, duong trong, cong trinh
hanh tang » hanh trang, anh tang, hanh mang
trong van » trong cac
van thanh » ban thanh, van tuan
thanh cau » thanh chau, thanh mau, nhanh cau
tang cua » mang cua, hang cua, tang luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (chinh sach)) - hanh tang cua cong trong van thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (chinh sach)) - hanh tang cua cong trong van thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (chinh sach)) - hanh tang cua cong trong van thanh cau*.