Perhaps you should try some spelling variations:
internationaal seminarie » international seminar (Expand Search), international solidarity (Expand Search)
international des » internationale des (Expand Search), international de (Expand Search), internationale de (Expand Search)
de internationaal » de international (Expand Search), het internationaal (Expand Search), de internationale (Expand Search)
des prijzen » de prijzen (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: "(( _ international des prijzen ) OR ( de internationaal seminarie prize ))~".
• Adding a wildcard symbol may retrieve word variants: (( _ international des prijzen ) OR ( de internationaal seminarie prize ))*.