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

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