Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy series" » "the patrick moocs nautical astronomy series", "the patrick moocs optical astronomy series", "the patrick moocs practical astronomy sergey", "the patrick moocs practical gastronomy services", "the patrick moocs practical astronomy studies", "the patrick mics practical astronomy series", "the patrick does practical astronomy series", "the patrick drops practical astronomy series", "the patrick moore practical astronomy series", "the patrick mons practical astronomy series", "the patrick moyes practical astronomy series"
"the patrick moocs practical astronomy survives" » "the patrick moocs nautical astronomy survives", "the patrick moocs optical astronomy survives", "the patrick moocs practical astronomy survey", "the patrick moocs practical astronomy surveys", "the patrick moocs practical astronomy studies", "the patrick mics practical astronomy survives", "the patrick does practical astronomy survives", "the patrick drops practical astronomy survives", "the patrick moore practical astronomy survives", "the patrick mons practical astronomy survives", "the patrick moyes practical astronomy survives"
"the patrick moocs positional astronomy series" » "the patrick moocs positional astronomy sergey", "the patrick moocs positional gastronomy services", "the patrick moocs positional astronomy studies", "the patrick holds positional astronomy series", "the patrick blocks positionals astronomy series", "the patrick images positional astronomy series", "the patrick moore positional astronomy series", "the patrick mons positional astronomy series", "the patrick moyes positional astronomy series"

Try widening your search to All Fields.

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 practical astronomy series") OR ("the patrick moocs positional astronomy series"))) OR ("the patrick moocs practical astronomy survives")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"the patrick moocs practical astronomy series\") OR (\"the patrick moocs positional astronomy series\"))) or (\"the patrick moocs practical astronomy survives\"))".
• Removing quotes may allow a broader search: (((( the patrick moocs practical astronomy series ) OR ( the patrick moocs positional astronomy series ))) or ( the patrick moocs practical astronomy survives )).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick moocs practical astronomy series") OR ("the patrick moocs positional astronomy series"))) or ("the patrick moocs practical astronomy survives"))*.