Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, nhung don
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » dang cong, hang nong, bang cong
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap
ho hieu » ho chieu, hoi hieu, nho hieu

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 - ((thanh trung) OR (thanh tung)) cua ((nhung cong) or (hang cong)) ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((thanh trung) OR (thanh tung)) cua ((nhung cong) OR (hang cong)) ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - ((thanh trung) OR (thanh tung)) cua ((nhung cong) or (hang cong)) ban than cau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((thanh trung) OR (thanh tung)) cua ((nhung cong) or (hang cong)) ban than cau*.