Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
tong cong » trong cong, cong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau

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 xanh - hanh doanh cua ((tong cong) or (thong thong)) tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh doanh cua ((tong cong) OR (thong thong)) tan phan dau*.