Perhaps you should try some spelling variations:
"international zet opposition" » "international met opposition" (Expand Search), "international week opposition" (Expand Search), "international a opposition" (Expand Search), "international d'ete opposition" (Expand Search)
"international day opposition" » "internationale dag opposition" (Expand Search), "international a opposition" (Expand Search), "international 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.

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