Perhaps you should try some spelling variations:
"decentralized prozessmanagement _" » "decentralized management _"
"decentralized disease management" » "decentralized biowaste management", "decentralized database management", "decentralized defenses management"
"decentralized case management" » "decentralized change management", "decentralized cross management", "decentralized asset management"

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: (((("decentralized case management") OR ("decentralized disease management"))) OR ("decentralized prozessmanagement _")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"decentralized case management\") OR (\"decentralized disease management\"))) or (\"decentralized prozessmanagement _\"))".
• Removing quotes may allow a broader search: (((( decentralized case management ) OR ( decentralized disease management ))) or ( decentralized prozessmanagement _ )).
• Adding a wildcard symbol may retrieve word variants: (((("decentralized case management") OR ("decentralized disease management"))) or ("decentralized prozessmanagement _"))*.