Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hieu sang » chieu sang, hieu lang, hieu quang
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
mang cua » manh cua, dung cua, ban cua
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sang - hanh mang cua nhung huong ((dan toan) or (dan than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - hanh mang cua nhung huong ((dan toan) OR (dan than)) cao*.