Perhaps you should try some spelling variations:
"et internationale solidarity prize" » "et international solidarity prize" (Expand Search), "et internationale politiek prize" (Expand Search), "en internationale solidarity prize" (Expand Search), "een internationale solidarity prize" (Expand Search), "de internationale solidarity prize" (Expand Search)
"het internationaal verdragie prize" » "het internationaal verdrag prize" (Expand Search), "het internationaal seminarie prize" (Expand Search), "_ international verdragie prize" (Expand Search), "de internationale verdragie prize" (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: (("et internationale solidarity prize") OR ("het internationaal verdragie prize"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"et internationale solidarity prize\") OR (\"het internationaal verdragie prize\"))*".
• Removing quotes may allow a broader search: (( et internationale solidarity prize ) OR ( het internationaal verdragie prize ))*.