Perhaps you should try some spelling variations:
informatik aktuell » informatik aktuelle, informationen aktuelle, informatik kulturelle
informatik modell » information modell, informatic model, information modelle
informatic models » informatic model, information models, informative models

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 (((informatik modell) OR (informatic models))))") OR ("((informatik aktuell) or (((informatik modell) OR (informatic models))))e")).
• Removing quotes may allow a broader search: (( ((informatik aktuell) or (((informatik modell) OR (informatic models)))) ) or ( ((informatik aktuell) or (((informatik modell) OR (informatic models))))e )).
• Adding a wildcard symbol may retrieve word variants: (("((informatik aktuell) or (((informatik modell) OR (informatic models))))") or ("((informatik aktuell) or (((informatik modell) OR (informatic models))))e"))*.