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