Perhaps you should try some spelling variations:
"internationale conferentie opposition" » "international conference opposition" (Expand Search)
"internationale d'envoi opposition" » "internationale de opposition" (Expand Search), "internationale design opposition" (Expand Search)
"internationale d'ete opposition" » "internationale de opposition" (Expand Search), "internationale contre opposition" (Expand Search), "international de opposition" (Expand Search), "internationale de l'opposition" (Expand Search)
"internationale des opposition" » "internationale de l'opposition" (Expand Search), "internationale des propositions" (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 d'ete opposition\") OR (\"internationale conferentie opposition\"))) OR (((\"internationale d'envoi opposition\") OR (\"internationale des opposition\"))))~".
• Removing quotes may allow a broader search: (((( internationale d'ete opposition ) OR ( internationale conferentie opposition ))) OR ((( internationale d'envoi opposition ) OR ( internationale des opposition ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("internationale d'ete opposition") OR ("internationale conferentie opposition"))) OR ((("internationale d'envoi opposition") OR ("internationale des opposition"))))*.