Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy series » gastronomy services, astronomy survives, astronomy studies
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
moyes practical » modes practical, movies practical, moraes practical
patrick mpondo » patricia opondo, patrick bond
patrick moyes » patrick keyes, patrick mayen, patrick moore's
patrick mons » patrick bond, patrick timony, patrick simon

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 moyes practical astronomy series ) OR ( the ((patrick mons) OR (patrick mpondo)) practical astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (( the patrick moyes practical astronomy series ) or ( the ((patrick mons) or (patrick mpondo)) practical astronomy sergey ))*.