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