Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
chua nang » chuc nang, chua xang, kha nang
doi hieu » doi chieu, doc hieu, doi hien
cua nong » cua cong, cuu nong, cua dong
cong dan » cong san, cong tan, huong 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 - hanh mang ((cua nong) OR (chua nang)) cong dan than cau~.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh mang ((cua nong) or (chua nang)) cong dan than cau*.