Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh thanh, dong doanh
doanh hoan » doanh khoa, doanh nhan, doanh luan
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong van » cong vang, cong san, song van
toan cao » toan ban
toan tap » toan ban
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 - ((doanh doanh) or (doanh hoan)) cua nhung cong van ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi anh - ((doanh doanh) OR (doanh hoan)) cua nhung cong van ((toan cao) OR (toan tap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi anh - ((doanh doanh) or (doanh hoan)) cua nhung cong van ((toan cao) OR (toan tap))*".