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