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