Perhaps you should try some spelling variations:
"en de internationale doel festival" » "en de internationale des festival" (Expand Search), "en de internationale de festival" (Expand Search), "en de international de festival" (Expand Search), "en de internationale het festival" (Expand Search), "en de internationale du festival" (Expand Search)
"het _ international dour festival" » "het _ international group festival" (Expand Search), "het _ international de festival" (Expand Search), "het _ international day festival" (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: (("het _ international dour festival") OR ("en de internationale doel festival"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"het _ international dour festival\") OR (\"en de internationale doel festival\"))".
• Removing quotes may allow a broader search: (( het _ international dour festival ) OR ( en de internationale doel festival )).
• Adding a wildcard symbol may retrieve word variants: (("het _ international dour festival") OR ("en de internationale doel festival"))*.