Perhaps you should try some spelling variations:
"nature e social sector." » "nature e social sectors.", "nature _ social sector.", "nature a social sector.", "nature 3 social sector."
"nature et society work." » "nature et social work.", "nature e society work.", "nature _ society work.", "nature open society work.", "nature _t society work.", "nature at society work."
"nature _t society work." » "nature _t social work.", "nature _ society work.", "nature e society work.", "nature host society work.", "nature a society work."

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: (((("nature et society work.") OR ("nature _t society work."))) OR ("nature e social sector."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nature et society work.\") OR (\"nature _t society work.\"))) or (\"nature e social sector.\"))~".
• Removing quotes may allow a broader search: (((( nature et society work. ) OR ( nature _t society work. ))) or ( nature e social sector. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nature et society work.") OR ("nature _t society work."))) or ("nature e social sector."))*.