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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( de internationale seminarie prize ) OR ( _ internationaal seminarie prize ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( de internationale seminarie prize ) OR ( _ internationaal seminarie prize ))".
• Adding a wildcard symbol may retrieve word variants: (( de internationale seminarie prize ) OR ( _ internationaal seminarie prize ))*.