Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cong tong » cong trong, cong thong, cong dong
tong dan » tuong dan, thong dan, trong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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: doi ((hieu lang) OR (chieu tinh)) - canh tranh cua cong tong dan than cau~.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu tinh)) - canh tranh cua cong tong dan than cau*.