Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh dang » hanh dong, anh dang, hanh dung
dung cong » dung trong
van thanh » ban thanh, van tuan
thanh cau » thanh chau, thanh mau, nhanh cau
dang nam » dong nam, dan nam, dung nam
nam dung » nam vung, nam dong, am dung
cong van » cong vang, cong san, song van

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

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