Perhaps you should try some spelling variations:
"wilfried 2.5 university" » "wilfried 2.2 university", "wilfried 25 university", "wilfried 2005 university", "wilfried b university", "wilfried von university", "wilfried bos university"
"wilfried 2.3 university" » "wilfried 2.2 university", "wilfried 5.3 university", "wilfried 23 university", "wilfried b university", "wilfried von university", "wilfried bos university"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"wilfried 2.5 university\") OR (\"wilfried 2.3 university\"))".
• Removing quotes may allow a broader search: (( wilfried 2.5 university ) OR ( wilfried 2.3 university )).
• Adding a wildcard symbol may retrieve word variants: (("wilfried 2.5 university") OR ("wilfried 2.3 university"))*.