Perhaps you should try some spelling variations:
"het eerste internationale a festival" » "het de internationale a festival" (Expand Search), "het eerste international a festival" (Expand Search), "het eerste internationale dag festival" (Expand Search), "het eerste internationale de festival" (Expand Search), "de eerste internationale a festival" (Expand Search), "het eerste internationale du festival" (Expand Search), "het eerste internationale het festival" (Expand Search)
"en _ international dour festival" » "en _ international group festival" (Expand Search), "en _ international de festival" (Expand Search), "en _ international day 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 a festival") OR ("en _ international dour festival"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"het eerste internationale a festival\") OR (\"en _ international dour festival\"))".
• Removing quotes may allow a broader search: (( het eerste internationale a festival ) OR ( en _ international dour festival )).
• Adding a wildcard symbol may retrieve word variants: (("het eerste internationale a festival") OR ("en _ international dour festival"))*.