Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
patrick moyes » patrick keyes, patrick mayen, patrick mons
patrick more » patrick moore, patrick mkie, patrick mark

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "the ((patrick more) OR (patrick moyes)) practical astronomy survives".
• Adding a wildcard symbol may retrieve word variants: the ((patrick more) OR (patrick moyes)) practical astronomy survives*.