Perhaps you should try some spelling variations:
"informationen aktuelle" » "informationen visuelle", "annotationen aktuelle", "informationen schnelle"
"informationen anteil" » "informationen teil", "informationen intern", "informationen unter"
"informatik aktuelle" » "informatik kulturelle", "informatik akademie"

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: (("informationen aktuelle") OR ((("informationen anteil") OR ("informatik aktuelle")))).
• Removing quotes may allow a broader search: (( informationen aktuelle ) or ((( informationen anteil ) or ( informatik aktuelle )))).
• Adding a wildcard symbol may retrieve word variants: (("informationen aktuelle") or ((("informationen anteil") or ("informatik aktuelle"))))*.