Perhaps you should try some spelling variations:
"nature e society sector." » "nature e social sector.", "nature free society sector.", "nature et society sector.", "nature de society sector.", "nature en society sector."
"nature _ society work." » "nature _ society where."
"nature e society actors." » "nature free society actors.", "nature et society actors.", "nature de society actors.", "nature en society actors.", "nature e society factors."

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: (("nature _ society work.") or ((("nature e society sector.") OR ("nature e society actors."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nature _ society work.") OR ((("nature e society sector.") OR ("nature e society actors.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nature _ society work.\") or (((\"nature e society sector.\") OR (\"nature e society actors.\"))))".
• Removing quotes may allow a broader search: (( nature _ society work. ) or ((( nature e society sector. ) OR ( nature e society actors. )))).
• Adding a wildcard symbol may retrieve word variants: (("nature _ society work.") or ((("nature e society sector.") OR ("nature e society actors."))))*.