Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
nhung van » phung van, nhung bai, nhung cau
dung cong » dung trong
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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: hoc hien xanh - canh tranh cua ((((nhung van) OR (thong cong))) OR (dung cong)) ban than cap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh tranh cua ((((nhung van) or (thong cong))) or (dung cong)) ban than cap*.