Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, hieu van
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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: ho ((((hieu lang) OR (nhieu tang))) OR (chieu xanh)) - canh tranh cua cong cong dan toan cao~.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) or (nhieu tang))) or (chieu xanh)) - canh tranh cua cong cong dan toan cao*.