Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » lanh manh, canh tranh, cach mang
dung cong » dung trong
chu sang » chu bang, thu sang, chieu sang
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sang) or (hieu lang)) - canh manh cua dung cong ((dan gian) or (ban than)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sang) OR (hieu lang)) - canh manh cua dung cong ((dan gian) OR (ban than)) cap.
• Adding a wildcard symbol may retrieve word variants: theo ((chu sang) or (hieu lang)) - canh manh cua dung cong ((dan gian) or (ban than)) cap*.