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