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

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

• Removing quotes may allow a broader search: (( het interationaal seminar prize ) OR ( de internationaal seminarie prize ))~.