Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chiet tach)) - canh tranh cua ((nhung cong) OR (hang cong)) ban than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chiet tach)) - canh tranh cua ((nhung cong) OR (hang cong)) ban than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chiet tach)) - canh tranh cua ((nhung cong) OR (hang cong)) ban than cap*".