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 dag opposition" » "international de opposition" (Expand Search), "international a opposition" (Expand Search), "internationale d'ete opposition" (Expand Search)
"international des propositions" » "international de propositions" (Expand Search)
"internationale des propositions" » "international des propositions" (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.

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