Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh luan » khanh luan, hang luan, hanh luat
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
van dung » van dong, xay dung, tin dung
quan cau » quang cao, toan cau, quan ha
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chinh sach)) - hanh luan van dung cong vang ((tuan cu) or (quan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh luan van dung cong vang ((tuan cu) OR (quan cau)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - hanh luan van dung cong vang ((tuan cu) or (quan cau))*.