Perhaps you should try some spelling variations:
"nature e society pmis." » "nature e society pt.", "nature e society part.", "nature free society pmis.", "nature et society pmis.", "nature de society pmis.", "nature en society pmis."
"nature open society pre." » "capture open society pre.", "natural open society pre.", "nature en society pre.", "nature open society part.", "nature open society pt."
"nature _ site users." » "nature _ bike users.", "nature _ opiate users.", "nature _ site subsets."

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 e society pmis.") OR ("nature open society pre."))) OR ("nature _ site users."))~.
• Removing quotes may allow a broader search: (((( nature e society pmis. ) or ( nature open society pre. ))) or ( nature _ site users. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nature e society pmis.") or ("nature open society pre."))) or ("nature _ site users."))*.