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