Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hien xanh » hien hanh, hien nhanh, hien khanh
tranh cua » doanh cua, manh cua
tao nguon » tao nguyen, tang nguon, dao nguoi
dang ngoc » hoang ngoc, van ngoc, dang nghe
van tuan » van quan, van ban, anh tuan
tuan tap » toan tap, tuan tai, tuyen tap

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 ((tao nguon) or (dang ngoc)) van tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - canh tranh cua ((tao nguon) OR (dang ngoc)) van tuan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - canh tranh cua ((tao nguon) or (dang ngoc)) van tuan tap*.