Perhaps you should try some spelling variations:
"internationale d'ete opposition" » "internationale d'envoi opposition" (Expand Search), "internationale contre opposition" (Expand Search), "international de opposition" (Expand Search)
"internationale des opposition" » "international des opposition" (Expand Search), "internationale des propositions" (Expand Search)
"internationale de l'opposition" » "international de l'opposition" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"internationale des opposition\") OR (((((\"internationale d'ete opposition\") OR (\"internationale de l'opposition\"))) OR (((\"internationale conferentie opposition\") OR (\"international conference opposition\"))))))~".
• Removing quotes may allow a broader search: (( internationale des opposition ) OR ((((( internationale d'ete opposition ) OR ( internationale de l'opposition ))) OR ((( internationale conferentie opposition ) OR ( international conference opposition ))))))~.
• Adding a wildcard symbol may retrieve word variants: (("internationale des opposition") OR ((((("internationale d'ete opposition") OR ("internationale de l'opposition"))) OR ((("internationale conferentie opposition") OR ("international conference opposition"))))))*.