Perhaps you should try some spelling variations:
"het eerste internationale dour festival" » "het eerste internationale de festival" (Expand Search), "het eerste internationale dag festival" (Expand Search), "het eerste internationale contre festival" (Expand Search), "de eerste internationale dour festival" (Expand Search)
"en de internationale des festival" » "en _ international des festival" (Expand Search), "en de internationale doel festival" (Expand Search), "en de internationale heus festival" (Expand Search), "en de internationale het festival" (Expand Search)

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

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