Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh qua » doanh quan, doanh cua, danh qua
doc hieu » toc thieu, hoc thieu, hoc hien
qua dung » quang dung, su dung, qua song
cong tac » cong ty
chan ta » chan tha, nhan tai, nhan tao

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 qua dung ((cong tac) or (trong cac)) chan ta~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh doanh qua dung ((cong tac) OR (trong cac)) chan ta.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh doanh qua dung ((cong tac) or (trong cac)) chan ta*.