Perhaps you should try some spelling variations:
"information modelle" » "information model", "information models", "information modeler", "information modele", "information modelse", "information modelere"
"information modell" » "information model", "information models", "information modeler"
"informatik modelle" » "geoinformatik modelle", "bioinformatik modelle", "informatic models", "informatic modelse", "information modelse", "informative modelse"
"informatik modell" » "informatic models", "information models", "informative models"
"informatic model" » "informatic models", "information model", "informative model"

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 ("information modell"))) OR ((((("informatik modelle") OR ("informatic model"))) OR ("information modelle")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"informatik modell\") or (\"information modell\"))) or (((((\"informatik modelle\") OR (\"informatic model\"))) or (\"information modelle\"))))".
• Removing quotes may allow a broader search: (((( informatik modell ) or ( information modell ))) or ((((( informatik modelle ) OR ( informatic model ))) or ( information modelle )))).
• Adding a wildcard symbol may retrieve word variants: (((("informatik modell") or ("information modell"))) or ((((("informatik modelle") OR ("informatic model"))) or ("information modelle"))))*.