Perhaps you should try some spelling variations:
natural et » naturali et, naturel et, naturales et
natural em » natural end, natural enemy, natural easy
natural en » natural enemy, natural easy, natural evil
de moret » de mort, de monet, de more
freiherr » freiheit

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: pufendorf, samuel / freiherr von / 1632-1694 / de moret ((((natural et) OR (natural em))) OR (natural en)) gentium.
• The words AND, OR and NOT may confuse the search; try adding quotes: "pufendorf, samuel / freiherr von / 1632-1694 / de moret ((((natural et) OR (natural em))) or (natural en)) gentium".
• Adding a wildcard symbol may retrieve word variants: pufendorf, samuel / freiherr von / 1632-1694 / de moret ((((natural et) OR (natural em))) or (natural en)) gentium*.