Perhaps you should try some spelling variations:
ngang thanh » nang thanh, nganh thanh, ngan thanh
nhung cong » dung cong, thong cong, nhung don
canh doanh » hanh doanh, chinh doanh, doanh doanh
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
doi hieu » doi chieu, doc hieu, doi hien
thanh ca » thanh cha, thanh cac, thanh ha

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 - canh doanh cua ((nhung cong) or (hang cong)) ngang thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - canh doanh cua ((nhung cong) OR (hang cong)) ngang thanh ca.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh doanh cua ((nhung cong) or (hang cong)) ngang thanh ca*.