Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
dong thanh » truong thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: hoc hien xanh - hanh tranh cua thong ((((cong tan) OR (dong thanh))) OR (cong tac)) toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua thong ((((cong tan) or (dong thanh))) or (cong tac)) toan ban*.