Perhaps you should try some spelling variations:
"studies over politieke vernieuwing" » "studies over policies vernieuwing", "studies over political vernieuwing", "studies en politieke vernieuwing", "studies novel politieke vernieuwing", "studies other politieke vernieuwing", "studies overview politieke vernieuwing"
studies ein » studies eine, studies e, studies ecp
studies en » studies end, studies e, studies ex

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: (("studies over politieke vernieuwing") OR ("((studies en) OR (studies ein)) politieke vernieuwing")).
• Removing quotes may allow a broader search: (( studies over politieke vernieuwing ) or ( ((studies en) OR (studies ein)) politieke vernieuwing )).
• Adding a wildcard symbol may retrieve word variants: (("studies over politieke vernieuwing") or ("((studies en) OR (studies ein)) politieke vernieuwing"))*.