Perhaps you should try some spelling variations:
603 philosophie » 6 philosophie, der philosophie, die philosophie
603 philosophy » 6 philosophy, 3 philosophy, 5 philosophy
2f philosophy » 23 philosophy, 24 philosophy, f philosophy
2 philosophy » 6 philosophy

Try widening your search to All Fields.

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: %22science %((2f philosophy) OR (((((603 philosophy) OR (603 philosophie))) OR (((2 philosophy) OR (1 philosophy))))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22science %((2f philosophy) or (((((603 philosophy) OR (603 philosophie))) or (((2 philosophy) or (1 philosophy))))))%22".
• Adding a wildcard symbol may retrieve word variants: %22science %((2f philosophy) or (((((603 philosophy) OR (603 philosophie))) or (((2 philosophy) or (1 philosophy))))))%22*.