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