Perhaps you should try some spelling variations:
"het eerste internationale des festival" » "het de internationale des festival" (Expand Search), "het eerste internationale doel festival" (Expand Search), "het eerste internationale heus festival" (Expand Search), "het eerste internationale du festival" (Expand Search), "de eerste internationale des festival" (Expand Search)
"en _ international het festival" » "en _ international met festival" (Expand Search), "en _ international zet festival" (Expand Search), "en _ international de 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 des festival") OR ("en _ international het festival"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"het eerste internationale des festival\") OR (\"en _ international het festival\"))*".
• Removing quotes may allow a broader search: (( het eerste internationale des festival ) OR ( en _ international het festival ))*.