Perhaps you should try some spelling variations:
"centre national de la recherche scientific" » "centre national de la recherche scientifique", "centre national de la ricerche scientifiche", "centre national de la recherches scientifiques", "central national de la recherche scientific", "centre national debt la recherche scientific", "centre national debts la recherche scientific"
"centre national de de recherche scientific" » "centre national de de recherche scientifique", "centre national de de ricerche scientifiche", "centre national de de recherches scientifiques", "central national de de recherche scientific", "centre national debt de recherche scientific", "centre national debts de recherche scientific", "centre national de ce recherche scientific", "centre national de re recherche scientific", "centre national de se recherche scientific"

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: "((\"centre national de la recherche scientific\") OR (\"centre national de de recherche scientific\"))".
• Removing quotes may allow a broader search: (( centre national de la recherche scientific ) OR ( centre national de de recherche scientific )).
• Adding a wildcard symbol may retrieve word variants: (("centre national de la recherche scientific") OR ("centre national de de recherche scientific"))*.