Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
cuong cong » cong cong, luong cong, duong cong
hieu lang » chieu sang, hieu quang, nhieu tang
van cuong » van chuong, van duong, van cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (hieu lang)) - thanh luan van cuong cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (hieu lang)) - thanh luan van cuong cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (hieu lang)) - thanh luan van cuong cong manh toan ban*.