Perhaps you should try some spelling variations:
"het eerste internationale contre festival" » "het eerste internationale politiek festival" (Expand Search), "het eerste internationale conferentie festival" (Expand Search), "het eerste international conference festival" (Expand Search), "de eerste internationale contre festival" (Expand Search)
"en de internationale de festival" » "en _ international de festival" (Expand Search), "en de internationale des festival" (Expand Search), "en de international de festival" (Expand Search), "en de internationale du festival" (Expand Search), "en de internationale dj festival" (Expand Search), "en de internationale doel festival" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"het eerste internationale contre festival\") OR (\"en de internationale de festival\"))~".
• Removing quotes may allow a broader search: (( het eerste internationale contre festival ) OR ( en de internationale de festival ))~.
• Adding a wildcard symbol may retrieve word variants: (("het eerste internationale contre festival") OR ("en de internationale de festival"))*.