Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh dung » thanh duong, thanh tung, thanh hung
bang cuong » tang cuong, bang cong, bang suong
cuong danh » cuon danh, huong dan, cuong linh
hieu lang » chieu sang, hieu quang, nhieu tang
luan bang » luan nang, luan ban, luan tang
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 ((hieu lang) or (chieu tinh)) - thanh dung luan bang cuong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (chieu tinh)) - thanh dung luan bang cuong danh van ban.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu tinh)) - thanh dung luan bang cuong danh van ban*.