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