Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
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
tac than » tac thanh, tam than, bac thanh
tac nhan » tao nhan, cac nhan, dac nhan

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