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)
eerste internationale » de internationale (Expand Search)
het internationaal » _ international (Expand Search), de internationale (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: "(( het internationaal seminarie prize ) OR ( eerste internationale meeting prize ))~".
• Adding a wildcard symbol may retrieve word variants: (( het internationaal seminarie prize ) OR ( eerste internationale meeting prize ))*.