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