Perhaps you should try some spelling variations:
"het eerste internationale heus festival" » "het eerste internationale des festival" (Expand Search), "het eerste internationale de festival" (Expand Search), "het eerste internationale hulp festival" (Expand Search), "het eerste internationale het festival" (Expand Search), "het eerste internationale wheels festival" (Expand Search), "het eerste internationale blues festival" (Expand Search), "de eerste internationale heus festival" (Expand Search)
"en de internationale dour festival" » "en de internationale des festival" (Expand Search), "en de internationale de festival" (Expand Search), "en de internationale dag festival" (Expand Search), "en _ international dour 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 heus festival\") OR (\"en de internationale dour festival\"))~".
• Removing quotes may allow a broader search: (( het eerste internationale heus festival ) OR ( en de internationale dour festival ))~.
• Adding a wildcard symbol may retrieve word variants: (("het eerste internationale heus festival") OR ("en de internationale dour festival"))*.