Perhaps you should try some spelling variations:
"cooperation la pratique periodiques." » "cooperation la critique periodiques.", "cooperation la politique periodiques.", "cooperation la physique periodiques.", "cooperation law pratique periodiques.", "cooperation a pratique periodiques.", "cooperation lead pratique periodiques."
"cooperation _ ecologie periodiques." » "cooperation _ biologie periodiques.", "cooperation _ sociologie periodiques.", "cooperation _ psychologie periodiques."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("cooperation la pratique periodiques.") OR ("cooperation _ ecologie periodiques."))~.
• Removing quotes may allow a broader search: (( cooperation la pratique periodiques. ) or ( cooperation _ ecologie periodiques. ))~.
• Adding a wildcard symbol may retrieve word variants: (("cooperation la pratique periodiques.") or ("cooperation _ ecologie periodiques."))*.