Perhaps you should try some spelling variations:
dang nguong » dung nguon, dang thuong, tang nguon
chieu sang » chieu sach, chieu xanh, hieu lang
nguong dan » huong dan
hanh manh » hanh mang, lanh manh, hoang manh
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chinh sach)) - hanh manh cua dang nguong dan than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chinh sach)) - hanh manh cua dang nguong dan than man.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chinh sach)) - hanh manh cua dang nguong dan than man*.