Perhaps you should try some spelling variations:
"internationale conferentie opposition" » "international conference opposition" (Expand Search)
"internationale d'envoi opposition" » "internationale de opposition" (Expand Search), "internationale design opposition" (Expand Search)
"internationale d'ete opposition" » "internationale de opposition" (Expand Search), "internationale contre opposition" (Expand Search), "international de opposition" (Expand Search), "internationale 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 d'ete opposition") OR ((("internationale conferentie opposition") OR ("internationale politiek opposition"))))) OR ((("internationale d'envoi opposition") OR ("internationale des propositions"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"internationale d'ete opposition\") OR (((\"internationale conferentie opposition\") OR (\"internationale politiek opposition\"))))) OR (((\"internationale d'envoi opposition\") OR (\"internationale des propositions\"))))*".
• Removing quotes may allow a broader search: (((( internationale d'ete opposition ) OR ((( internationale conferentie opposition ) OR ( internationale politiek opposition ))))) OR ((( internationale d'envoi opposition ) OR ( internationale des propositions ))))*.