Perhaps you should try some spelling variations:
"hien duong minh doanh luan van" » "hien luong minh doanh luan van", "hien tuong minh doanh luan van", "chieu duong minh doanh luan van", "hien duong manh doanh luan van", "hien truong minh doanh luan van", "hien quang minh doanh luan van", "hien duong kinh doanh luan van", "hien duong minh danh luan van", "hien duong minh doan luan van", "hien duong minh doanh nhan van"
"hien thong minh doanh luan van" » "hien thong kinh doanh luan van", "hien thong minh danh luan van", "hien thong minh doan luan van", "hien thong minh doanh nhan van", "vien thong minh doanh luan van", "hien tuong minh doanh luan van", "chien thuong minh doanh luan van", "hien thong tin doanh luan van", "hien hoang minh doanh luan van"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("hien duong minh doanh luan van") OR ("hien thong minh doanh luan van"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"hien duong minh doanh luan van\") OR (\"hien thong minh doanh luan van\"))".
• Removing quotes may allow a broader search: (( hien duong minh doanh luan van ) OR ( hien thong minh doanh luan van )).
• Adding a wildcard symbol may retrieve word variants: (("hien duong minh doanh luan van") OR ("hien thong minh doanh luan van"))*.