Perhaps you should try some spelling variations:
internationalem personal » internationalen personen, international personas, intentional personal
und strategieforschung » der strategieforschung, einer strategieforschung, und strategieausrichtung
international person » international personas, international prison, international perspec

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: ((international person) OR (internationalem personal))- und strategieforschung.
• Adding a wildcard symbol may retrieve word variants: ((international person) or (internationalem personal))- und strategieforschung*.