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)
"internationale de opposition" » "internationale d'ete opposition" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("international de opposition") OR ((("internationale contre opposition") OR ((((("internationale de opposition") OR ("internationale de l'opposition"))) OR ("internationale des opposition"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"international de opposition\") OR (((\"internationale contre opposition\") OR (((((\"internationale de opposition\") OR (\"internationale de l'opposition\"))) OR (\"internationale des opposition\"))))))".
• Removing quotes may allow a broader search: (( international de opposition ) OR ((( internationale contre opposition ) OR ((((( internationale de opposition ) OR ( internationale de l'opposition ))) OR ( internationale des opposition )))))).
• Adding a wildcard symbol may retrieve word variants: (("international de opposition") OR ((("internationale contre opposition") OR ((((("internationale de opposition") OR ("internationale de l'opposition"))) OR ("internationale des opposition"))))))*.