Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy series » astronomy sergey, gastronomy services, astronomy survives
patrick moyes » patrick keyes, patrick mons, patrick moore's
patrick mayen » patrick bayer, patrick madan, patrick maxton
patrick mark » patrick marx, patrick burk, patrick meek

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