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