Perhaps you should try some spelling variations:
chiet tach » chieu sach
toc chiet » toc thieu, hoc thiet, toc viet
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 san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chiet tach - hanh tang cua dung cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chiet tach - hanh tang cua dung cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: toc chiet tach - hanh tang cua dung cong san ((toan cao) or (toan ban))*.