Perhaps you should try some spelling variations:
"fir+bzw forschung fur die praxis" » "fir+gw forschung fur die praxis", "fir+cscw forschung fur die praxis"
"fire+bzw forschung fur die praxis" » "fire+gw forschung fur die praxis", "fire+cscw forschung fur die praxis"
"firm+bzw forschung fur die praxis" » "firm+gw forschung fur die praxis", "firm+cscw forschung fur die praxis"

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: (((("fir+bzw forschung fur die praxis") OR ("fire+bzw forschung fur die praxis"))) OR ("firm+bzw forschung fur die praxis")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"fir+bzw forschung fur die praxis\") OR (\"fire+bzw forschung fur die praxis\"))) or (\"firm+bzw forschung fur die praxis\"))".
• Removing quotes may allow a broader search: (((( fir+bzw forschung fur die praxis ) OR ( fire+bzw forschung fur die praxis ))) or ( firm+bzw forschung fur die praxis )).
• Adding a wildcard symbol may retrieve word variants: (((("fir+bzw forschung fur die praxis") OR ("fire+bzw forschung fur die praxis"))) or ("firm+bzw forschung fur die praxis"))*.