Perhaps you should try some spelling variations:
"halhet internationaal memorial prize" » "halhet internationaal verdrag prize" (Expand Search), "halhet internationaal meeting prize" (Expand Search), "halhet internationaal seminarie prize" (Expand Search), "het internationaal memorial prize" (Expand Search), "halen internationale memorial prize" (Expand Search), "het interationaal memorial prize" (Expand Search)
"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)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("halhet internationaal memorial prize") OR ("en internationale memorial prize"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"halhet internationaal memorial prize\") OR (\"en internationale memorial prize\"))".
• Removing quotes may allow a broader search: (( halhet internationaal memorial prize ) OR ( en internationale memorial prize )).
• Adding a wildcard symbol may retrieve word variants: (("halhet internationaal memorial prize") OR ("en internationale memorial prize"))*.