Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
canh doanh » hanh doanh, chinh doanh, doanh doanh
hieu sang » chieu sang, hieu lang, hieu quang
doanh cua » doanh luan
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu sang - canh doanh cua ((nhung cong) OR (dung cong)) dan than cau~".
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - canh doanh cua ((nhung cong) OR (dung cong)) dan than cau*.