Perhaps you should try some spelling variations:
internationaal seminarie » international seminar (Expand Search), international solidarity (Expand Search)
internationale meeting » international meeting (Expand Search), internationale samenwerking (Expand Search)
en internationaal » het internationaal (Expand Search), en internationale (Expand Search), een internationale (Expand Search)
de internationale » _ international (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( en internationaal seminarie prize ) OR ( de internationale meeting prize ))~".
• Adding a wildcard symbol may retrieve word variants: (( en internationaal seminarie prize ) OR ( de internationale meeting prize ))*.