Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chong cong » thong cong, cuong cong, phong cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong cong » cong dong, trong cong, dung cong
than phan » thanh phan, toan phan, thanh pham
hoc hieu » hoc thieu, hoc hien, doc hieu
tan phan » toan phan, van phan, tai phan

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 - doanh doanh nhan ((chong cong) or (cong cong)) ((tan phan) OR (than phan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - doanh doanh nhan ((chong cong) OR (cong cong)) ((tan phan) OR (than phan)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - doanh doanh nhan ((chong cong) or (cong cong)) ((tan phan) OR (than phan)) tu".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - doanh doanh nhan ((chong cong) or (cong cong)) ((tan phan) OR (than phan)) tu*.