Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien nhanh, hien khanh, khien canh
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan tap » toan 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) OR (hien hanh))) OR (chieu xanh)) - hanh tranh cua dung cong tap toan tap~.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien xanh) or (hien hanh))) or (chieu xanh)) - hanh tranh cua dung cong tap toan tap*.