Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
bang suong » bang song, bang tuong, bang phuong
suong danh » cuong danh, song danh, phuong danh
hieu lang » chieu sang, hieu quang, nhieu tang
danh van » doanh van, dang van, dinh van
cong cu » chung cu
cu bang » chu bang, co bang, cu ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu lang) or (chieu sach)) - thanh cong cu bang suong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (chieu sach)) - thanh cong cu bang suong danh van ban.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu sach)) - thanh cong cu bang suong danh van ban*.