Perhaps you should try some spelling variations:
practical astronomy » optical astronomy, positional astronomy
patrick more » patrick moyes, patrick mark, patrick marx
patrick mkie » patrick mackie, patrick mein, patrick m.m
patrick m » patrick _, patrick a

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: "((\"the patrick moore ((practical astronomy) OR (nautical astronomy)) sergey\") or (\"the ((patrick more) OR (((patrick mkie) OR (patrick m)))) ((practical astronomy) OR (nautical astronomy)) sergey\"))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"the patrick moore ((practical astronomy) or (nautical astronomy)) sergey\\") or (\\"the ((patrick more) or (((patrick mkie) OR (patrick m)))) ((practical astronomy) or (nautical astronomy)) sergey\\"))\"".
• Removing quotes may allow a broader search: (( the patrick moore ((practical astronomy) or (nautical astronomy)) sergey ) or ( the ((patrick more) or (((patrick mkie) OR (patrick m)))) ((practical astronomy) or (nautical astronomy)) sergey )).