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