Perhaps you should try some spelling variations:
de internationale » _ international (Expand Search)
internationale de » internationale des (Expand Search), international de (Expand Search)
et internationale » en internationale (Expand Search), een internationale (Expand Search), het internationaal (Expand Search)
et international » het internationaal (Expand Search), en internationale (Expand Search), _ international (Expand Search)
de prijs » te parijs (Expand Search), de paris (Expand Search)

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

• Removing quotes may allow a broader search: (( de internationale de prijs ) OR ( ((et international) OR (et internationale)) seminar prize )).