Perhaps you should try some spelling variations:
luan chung » luan chinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh dang » hanh dong, hanh dung, hanh mang
nho hieu » nha hieu, nho sieu, nhu hieu
anh dang » anh dong, anh dung, anh bang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: nho hieu lang - ((hanh dang) or (anh dang)) luan chung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - ((hanh dang) OR (anh dang)) luan chung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - ((hanh dang) or (anh dang)) luan chung ((cong dan) or (cong san)) toan cau*.