Perhaps you should try some spelling variations:
"schriften kmu management" » "schriften icu management", "schriften du management", "schriften zu management", "schriften im management", "schriften u management", "schriften und management"
"schriften des management" » "schriften des managements"

Try widening your search to All Fields.

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"schriften kmu management\") OR (\"schriften des management\"))".
• Removing quotes may allow a broader search: (( schriften kmu management ) OR ( schriften des management )).
• Adding a wildcard symbol may retrieve word variants: (("schriften kmu management") OR ("schriften des management"))*.