Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
nhung cong » thong cong, hang cong, nhung don
nhu phuong » thu phuong, nhung phuong, thi phuong
tranh cua » doanh cua, manh cua
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
hoa phan » hoa dan, co phan
phan cac » nhan cach, phan dau, phan lap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - canh tranh cua ((((nhung cong) OR (dung cong))) OR (nhu phuong)) hoa phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu nganh - canh tranh cua ((((nhung cong) OR (dung cong))) or (nhu phuong)) hoa phan cac~".
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - canh tranh cua ((((nhung cong) OR (dung cong))) or (nhu phuong)) hoa phan cac*.