Perhaps you should try some spelling variations:
internationale seminarie » internationaal seminarie (Expand Search), 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 internationale » en internationale (Expand Search), een internationale (Expand Search), de internationale (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: (( het internationaal meeting prize ) OR ( et internationale seminarie prize ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( het internationaal meeting prize ) OR ( et internationale seminarie prize ))".
• Adding a wildcard symbol may retrieve word variants: (( het internationaal meeting prize ) OR ( et internationale seminarie prize ))*.