Perhaps you should try some spelling variations:
dung nguong » dung nguon, dung thuong, dung nguoi
nguong manh » nguong dan, duong manh, luong manh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cac » trinh cac, thanh cac, tranh cai
manh toan » thanh toan, anh tuan, tinh toan
cac dung » cach dung, cac duong, tac dung
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (hieu lang)) - canh tranh cac dung nguong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (hieu lang)) - canh tranh cac dung nguong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (hieu lang)) - canh tranh cac dung nguong manh toan cau*.