Perhaps you should try some spelling variations:
informationsmanager » informationstrager, informationsmanagement, informationsempfanger
informationsmangel » informationsmittel, informationsempfanger, informationsangebot
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 informationsmangel ) OR innovationsmanager ).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( informationsmanager OR informationsmangel ) or innovationsmanager )".
• Adding a wildcard symbol may retrieve word variants: (( informationsmanager OR informationsmangel ) or innovationsmanager )*.