Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
tang cuong » nang luong
cuong danh » cuon danh, huong dan, cuong linh
danh van » doanh van, dang van, dinh van
cong ca » cong cua, cong cau, cong cac
ca tang » cao tang, ha tang, gia tang

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 cong ca tang cuong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - thanh cong ca tang cuong danh van ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu tinh)) - thanh cong ca tang cuong danh van ban*.