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