Perhaps you should try some spelling variations:
doanh phan » doanh nhan, doan phan, doanh thanh
dong doanh » dung doanh, trong doanh, doanh doanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - canh tranh ((cua dung) OR (cua dong)) dong doanh phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - canh tranh ((cua dung) OR (cua dong)) dong doanh phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh ((cua dung) OR (cua dong)) dong doanh phan tu*.