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 mics practical astronomy sergey", "the patrick clocks practical astronomy sergey", "the patrick colts practical astronomy sergey", "the patrick mons practical astronomy sergey", "the patrick moyes practical astronomy sergey", "the patrick moore's practical astronomy sergey"
"the patrick moore nautical astronomy surveying" » "the patrick moore nautical astronomy during", "the patrick board nautical astronomy surveying", "the patrick mile nautical astronomy surveying", "the patrick moore national astronomy surveying"
"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 mons positional astronomy sergey", "the patrick moyes positional astronomy sergey", "the patrick moore's positional 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 moore nautical astronomy surveying")).
• Removing quotes may allow a broader search: (((( the patrick moocs practical astronomy sergey ) or ( the patrick moocs positional astronomy sergey ))) or ( the patrick moore nautical astronomy surveying )).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick moocs practical astronomy sergey") or ("the patrick moocs positional astronomy sergey"))) or ("the patrick moore nautical astronomy surveying"))*.