Perhaps you should try some spelling variations:
"en internationale memorial prize" » "en internationale meeting prize" (Expand Search), "de internationale memorial prize" (Expand Search), "_ international memorial prize" (Expand Search), "het internationaal memorial prize" (Expand Search)
"ehet internationaal memorial prize" » "ehet internationaal verdrag prize" (Expand Search), "ehet internationaal meeting prize" (Expand Search), "ehet internationaal seminarie prize" (Expand Search), "het internationaal memorial prize" (Expand Search), "het interationaal memorial prize" (Expand Search), "31ste internationaal memorial 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: (("en internationale memorial prize") OR ("ehet internationaal memorial prize"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"en internationale memorial prize\") OR (\"ehet internationaal memorial prize\"))".
• Removing quotes may allow a broader search: (( en internationale memorial prize ) OR ( ehet internationaal memorial prize )).
• Adding a wildcard symbol may retrieve word variants: (("en internationale memorial prize") OR ("ehet internationaal memorial prize"))*.