Perhaps you should try some spelling variations:
informationsmanager » informationsmangel, informationstrager, informationsmanagement
informationsmittel » informationsmodell, informationsmaterial
innovationsmanager » innovationsmanagement, innovationsmanagements

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: (( informationsmanager OR informationsmittel ) OR innovationsmanager ).
• Adding a wildcard symbol may retrieve word variants: (( informationsmanager or informationsmittel ) or innovationsmanager )*.