Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh dung » thanh duong, thanh tung, thanh hung
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
cong danh » cuong danh, cong dan, cong thanh
danh van » doanh van, dang van, dinh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu tinh)) - thanh dung luan dang cong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - thanh dung luan dang cong danh van ban*.