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