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" (Expand Search)
"internationale des opposition" » "internationale d'ete opposition" (Expand Search), "internationale des propositions" (Expand Search)
"international de opposition" » "international d'ete 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: "((\"international group opposition\") OR (((\"internationale contre opposition\") OR (((((\"internationale des opposition\") OR (\"international de opposition\"))) OR (\"internationale de l'opposition\"))))))~".
• Removing quotes may allow a broader search: (( international group opposition ) OR ((( internationale contre opposition ) OR ((((( internationale des opposition ) OR ( international de opposition ))) OR ( internationale de l'opposition ))))))~.
• Adding a wildcard symbol may retrieve word variants: (("international group opposition") OR ((("internationale contre opposition") OR ((((("internationale des opposition") OR ("international de opposition"))) OR ("internationale de l'opposition"))))))*.