Perhaps you should try some spelling variations:
"informationen aktuelle" » "annotationen aktuelle", "informatik aktuelle", "informationen anteil"
"informationen visuelle" » "informationen erstellen", "information visually", "informationen schnelle"
"informatik aktuell" » "informatik aktuelle", "informatik modell", "informatik kulturelle"

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