Perhaps you should try some spelling variations:
nhung nong » nhung cong, nhung bong, nhung chong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
mang cua » manh cua, dung cua, ban cua
dan than » dan chan, ban than, van than

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: hoc hieu lang - hanh mang cua nhung nong ((dan than) OR (anh tuan)) cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - hanh mang cua nhung nong ((dan than) or (anh tuan)) cau*.