Perhaps you should try some spelling variations:
"information modell" » "information modelle", "information model", "information models"
"informatik modelle" » "information modelle", "geoinformatik modelle", "bioinformatik modelle", "informatic modele", "information modellee", "information modelse"
"informatic modelse" » "informatic model", "information modelle", "information models", "informatic modele", "information modelse", "informative modelse"
"informatik modell" » "informatic model", "information modelle", "information models"
"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 modell"))) OR ((("informatik modelle") OR ("informatic modelse")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"informatik modell\") OR (\"informatic models\"))) or (\"information modell\"))) or (((\"informatik modelle\") or (\"informatic modelse\"))))".
• Removing quotes may allow a broader search: (((((( informatik modell ) OR ( informatic models ))) or ( information modell ))) or ((( informatik modelle ) or ( informatic modelse )))).
• Adding a wildcard symbol may retrieve word variants: (((((("informatik modell") OR ("informatic models"))) or ("information modell"))) or ((("informatik modelle") or ("informatic modelse"))))*.