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