Perhaps you should try some spelling variations:
optical astronomy » nautical astronomy, spherical astronomy, positional astronomy
astronomy series » astronomy sergey, gastronomy services, astronomy survives
patrick moyes » patrick keyes, patrick mayen, patrick moore's
patrick more » patrick moore, patrick mkie, patrick mark
patrick mons » patrick bond, patrick mpondo, patrick timony

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