Perhaps you should try some spelling variations:
"collection functions et societes." » "production functions et societes.", "collective actions et societes.", "collection functions _ societes.", "collection function _ societes.", "collection functions et societys.", "collection functions et societiess.", "collection functions et societals."
"collection action et societe." » "collective action et societe.", "collective actions et societe.", "collection method et societe.", "collection action _ societe.", "collection action a societe.", "collection action et society.", "collection action et societies.", "collection action et societal."

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: (("collection functions et societes.") or ("collection action et societe."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("collection functions et societes.") OR ("collection action et societe.")).
• Removing quotes may allow a broader search: (( collection functions et societes. ) or ( collection action et societe. )).
• Adding a wildcard symbol may retrieve word variants: (("collection functions et societes.") or ("collection action et societe."))*.