Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
doanh cua » doanh luan
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - hanh doanh cua dung cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - hanh doanh cua dung cong dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh doanh cua dung cong dan ((toan cao) or (toan ban))*.