Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
thuat ban » thuat bai, thuat bao, thuat san
thuat do » thuat o
toan ban » van ban

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: theo tieu xanh - canh tranh van nhung cong ty ((((thuat ban) OR (thuat do))) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - canh tranh van nhung cong ty ((((thuat ban) or (thuat do))) or (toan ban))*.