Perhaps you should try some spelling variations:
chieu sach » chieu sang, chieu xanh, hieu cach
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chiet tach) or (((chieu sach) OR (chinh sach)))) - hanh tang cua dung cong tac than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (((chieu sach) OR (chinh sach)))) - hanh tang cua dung cong tac than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) or (((chieu sach) OR (chinh sach)))) - hanh tang cua dung cong tac than cap".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (((chieu sach) OR (chinh sach)))) - hanh tang cua dung cong tac than cap*.