Perhaps you should try some spelling variations:
"cooperation fast publiques periodiques." » "cooperation fast publique periodiques.", "cooperation fast appliquee periodiques.", "cooperation fast biologiques periodiques.", "cooperation _ publiques periodiques.", "cooperation sant publique periodiques."
"cooperation et biologie periodiques." » "cooperation et psychologie periodiques.", "cooperation _ biologie periodiques.", "cooperation en biologie periodiques.", "cooperation de biologie periodiques.", "cooperation et topologie periodiques."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("cooperation fast publiques periodiques.") or ("cooperation et biologie periodiques."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cooperation fast publiques periodiques.") OR ("cooperation et biologie periodiques.")).
• Removing quotes may allow a broader search: (( cooperation fast publiques periodiques. ) or ( cooperation et biologie periodiques. )).
• Adding a wildcard symbol may retrieve word variants: (("cooperation fast publiques periodiques.") or ("cooperation et biologie periodiques."))*.