Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy studies » astronomy study, economy studies, astronomy status
astronomy surveys » astronomy survey, astronomy surveying, astronomy survives
movies practical » devices practical, modules practical, reviews practical
patrick movies » patrick moyes, patrick moore's, maverick movies
patrick moocs » patrick mons, patrick moyes, patrick moore's

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 moocs) OR (patrick moore)) practical astronomy studies ) OR ( the patrick movies practical astronomy surveys )).
• Adding a wildcard symbol may retrieve word variants: (( the ((patrick moocs) or (patrick moore)) practical astronomy studies ) or ( the patrick movies practical astronomy surveys ))*.