Perhaps you should try some spelling variations:
informationen aktuelle » informationen visuelle, annotationen aktuelle, informatik aktuelle
"informatik aktuell" » "informatik aktuelle", "informatik modell", "informatik kulturelle"
form kultureller » vor kultureller, formate kultureller, von kultureller

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: (("informatik aktuell") OR ("((form kultureller) or (informationen aktuelle))")).
• Removing quotes may allow a broader search: (( informatik aktuell ) or ( ((form kultureller) or (informationen aktuelle)) )).
• Adding a wildcard symbol may retrieve word variants: (("informatik aktuell") or ("((form kultureller) or (informationen aktuelle))"))*.