Perhaps you should try some spelling variations:
"business & economic / human resource & personal management" » "business & economic / human resource & personalmanagement im", "business & economic / human resource & personalmanagement und"

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: (("business & economic / human resources & personnel management") OR ("business & economic / human resource & personal management")).
• Removing quotes may allow a broader search: (( business & economic / human resources & personnel management ) or ( business & economic / human resource & personal management )).
• Adding a wildcard symbol may retrieve word variants: (("business & economic / human resources & personnel management") or ("business & economic / human resource & personal management"))*.