Perhaps you should try some spelling variations:
internationaal seminarie » international seminar (Expand Search), international solidarity (Expand Search)
internationaal meeting » international meeting (Expand Search), internationale meeting (Expand Search), internationaal verdrag (Expand Search)
het internationaal » _ international (Expand Search), de internationale (Expand Search)
et internationaal » et internationale (Expand Search), het interationaal (Expand Search), 8ste internationaal (Expand Search)

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

• Removing quotes may allow a broader search: (( het internationaal meeting prize ) OR ( et internationaal seminarie prize ))~.