Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
dung nguon » dung nguoi, luong nguon, dung ngan
hien xanh » hien hanh, hien nhanh, hien khanh
tranh cua » doanh cua, manh cua
bang ngon » tang nguon, danh ngon, dang ngoc
van toan » van tuan, van tan, van thanh
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu xanh)) - canh tranh cua ((dung nguon) or (bang ngon)) van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - canh tranh cua ((dung nguon) OR (bang ngon)) van toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - canh tranh cua ((dung nguon) or (bang ngon)) van toan tap*.