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

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("decentralized case management") OR ("decentralized prozessmanagement _")).
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