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