Perhaps you should try some spelling variations:
"geoinformation modelle" » "geoinformation models", "information modelle", "die informationsmodelle"
"informatik modell" » "information modell", "information modelle", "information models"
"geoinformatik modelle" » "geoinformation modelle", "geoinformation modellee", "geoinformation modelse"
"informatic models" » "information models", "informative models", "information modell", "information modelss"
"informatic model" » "information model", "informative model", "information models"

You may be able to get more results by adjusting your search query.

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