Perhaps you should try some spelling variations:
"studies en politiek vernieuwing" » "studies en politik vernetzung", "studies en politieke vernieuwing", "studies en politica vernieuwing", "studies en politique vernieuwing", "studies ein politiek vernieuwing", "studies end politiek vernieuwing", "studies e politiek vernieuwing"
"Studies en politiquee vernieuwing" » "Studies en politique vernieuwing", "Studies lien politique vernieuwing", "Studies _ politique vernieuwing"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("Studies en politiquee vernieuwing") OR ("studies en politiek vernieuwing")).
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