Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh dong » anh dong, ha dong
dong xuan » hoang xuan, dinh xuan, dong cua
xuan dang » xuan nang, xuan cang, tuan dang
dang cong » dung cong
cong san » cong tac
toan ban » van ban
toan cao » toan tap

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 (chinh sach)) - hanh dong xuan dang cong san ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - hanh dong xuan dang cong san ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chinh sach)) - hanh dong xuan dang cong san ((toan ban) or (toan cao))*.