Perhaps you should try some spelling variations:
doanh luan » doanh nhan
nhung cong » dung cong, thong cong, hang cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
doi chi » doi khi
chi anh » chi danh, chi hanh, thi anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi anh - canh ((doanh cua) or (doanh luan)) nhung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi anh - canh ((doanh cua) OR (doanh luan)) nhung cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: doi chi anh - canh ((doanh cua) or (doanh luan)) nhung cong dan than ban*.