Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
toc hieu » toc thieu, doc hieu, hoc thieu
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan lap
anh ban » anh bang, anh bai, anh van
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu lang - anh ban cua nhung huong dan ((than cau) or (((phan cau) or (phan tu))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu lang - anh ban cua nhung huong dan ((than cau) OR (((phan cau) OR (phan tu)))).
• Adding a wildcard symbol may retrieve word variants: toc hieu lang - anh ban cua nhung huong dan ((than cau) or (((phan cau) or (phan tu))))*.