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