Perhaps you should try some spelling variations:
"information modellee" » "information modelle", "information modeler", "information modell"
"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 modell") OR ("informatic models"))) OR ("information modellee")).
• Removing quotes may allow a broader search: (((( informatik modell ) or ( informatic models ))) or ( information modellee )).
• Adding a wildcard symbol may retrieve word variants: (((("informatik modell") or ("informatic models"))) or ("information modellee"))*.