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 de opposition" » "internationale des opposition" (Expand Search), "internationale d'ete opposition" (Expand Search)
"internationale de l'opposition" » "internationale des l'opposition" (Expand Search)
"international de opposition" » "internationale des opposition" (Expand Search), "international 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: (("internationale contre opposition") OR ((((("internationale de opposition") OR ("internationale de l'opposition"))) OR ("international de opposition"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"internationale contre opposition\") OR (((((\"internationale de opposition\") OR (\"internationale de l'opposition\"))) OR (\"international de opposition\"))))".
• Removing quotes may allow a broader search: (( internationale contre opposition ) OR ((((( internationale de opposition ) OR ( internationale de l'opposition ))) OR ( international de opposition )))).
• Adding a wildcard symbol may retrieve word variants: (("internationale contre opposition") OR ((((("internationale de opposition") OR ("internationale de l'opposition"))) OR ("international de opposition"))))*.