Perhaps you should try some spelling variations:
"johannes von beethoven" » "johannes van beethoven", "johannes _ beethoven"
"johann von beethoven" » "johann van beethoven", "johann _ beethoven"
"johannes de beethoven" » "johannes van beethoven", "johannes c beethoven", "johannes _ beethoven"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("johannes von beethoven") OR ("johannes de beethoven"))) OR ("johann von beethoven")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"johannes von beethoven\") OR (\"johannes de beethoven\"))) or (\"johann von beethoven\"))".
• Removing quotes may allow a broader search: (((( johannes von beethoven ) OR ( johannes de beethoven ))) or ( johann von beethoven )).
• Adding a wildcard symbol may retrieve word variants: (((("johannes von beethoven") OR ("johannes de beethoven"))) or ("johann von beethoven"))*.