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

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 et social work.") or ((("nature e society ser.") or ("nature a society ser."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nature et social work.") OR ((("nature e society ser.") OR ("nature a society ser.")))).
• Removing quotes may allow a broader search: (( nature et social work. ) or ((( nature e society ser. ) or ( nature a society ser. )))).
• Adding a wildcard symbol may retrieve word variants: (("nature et social work.") or ((("nature e society ser.") or ("nature a society ser."))))*.