Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy sergey" » "the patrick moocs optical astronomy sergey", "the patrick moocs practical astronomy survey", "the patrick moocs practical astronomy surveys", "the patrick moocs practical astronomy seven", "the patrick books practical astronomy sergey", "the patrick mics practical astronomy sergey", "the patrick colts practical astronomy sergey", "the patrick moore practical astronomy sergey", "the patrick mons practical astronomy sergey", "the patrick moyes practical astronomy sergey"
"the patrick moocs positional astronomy sergey" » "the patrick moocs positional astronomy survey", "the patrick moocs positional astronomy surveys", "the patrick moocs positional astronomy seven", "the patrick holds positional astronomy sergey", "the patrick blocks positionals astronomy sergey", "the patrick images positional astronomy sergey", "the patrick moore positional astronomy sergey", "the patrick mons positional astronomy sergey", "the patrick moyes positional astronomy sergey"
"the patrick mile nautical astronomy sergey" » "the patrick mile nautical astronomy survey", "the patrick mile nautical astronomy surveys", "the patrick mile nautical astronomy seven", "the patrick i nautical astronomy sergey", "the patrick ii nautical astronomy sergey", "the patrick some nautical astronomy sergey", "the patrick miller nautical astronomy sergey", "the patrick riley nautical astronomy sergey", "the patrick maill nautical astronomy sergey"

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