Perhaps you should try some spelling variations:
policies vernieuwing » policies verifying, policies versioning, policies deriving
policies reviewing » politics reviewing, policies review, policy reviewing
over policies » other policies, power policies, poverty policies
studies over » studies novel, studies other, studies overview
en politieke » en politiek, en politique, en politica
studies en » studies ein, studies end, studies e

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 policies vernieuwing ) OR ( Studies over policies reviewing ))) OR ( studies en politieke vernieuwing )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( Studies over policies vernieuwing ) OR ( Studies over policies reviewing ))) or ( studies en politieke vernieuwing ))".
• Adding a wildcard symbol may retrieve word variants: (((( Studies over policies vernieuwing ) OR ( Studies over policies reviewing ))) or ( studies en politieke vernieuwing ))*.