Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy sergey" » "the patrick moocs nautical astronomy sergey", "the patrick moocs positional 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 more practical astronomy sergey" » "the patrick more nautical astronomy sergey", "the patrick more positional astronomy sergey", "the patrick more practical astronomy survey", "the patrick more practical astronomy surveys", "the patrick more practical astronomy seven", "the patrick moore practical astronomy sergey", "the patrick moyes practical astronomy sergey", "the patrick mkie practical astronomy sergey"
"the patrick moocs optical astronomy sergey" » "the patrick moocs nautical astronomy sergey", "the patrick moocs spherical astronomy sergey", "the patrick moocs positional astronomy sergey", "the patrick moocs optical astronomy survey", "the patrick moocs optical astronomy surveys", "the patrick moocs optical astronomy seven", "the patrick moore optical astronomy sergey", "the patrick mons optical astronomy sergey", "the patrick moyes optical astronomy sergey", "the patrick moon optical astronomy sergey", "the patrick topics optical astronomy sergey", "the patrick cmos optical astronomy sergey"

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 sergey") OR ("the patrick moocs optical astronomy sergey"))) OR ("the patrick more practical 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 optical astronomy sergey\"))) or (\"the patrick more practical astronomy sergey\"))".
• Removing quotes may allow a broader search: (((( the patrick moocs practical astronomy sergey ) OR ( the patrick moocs optical astronomy sergey ))) or ( the patrick more practical astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick moocs practical astronomy sergey") OR ("the patrick moocs optical astronomy sergey"))) or ("the patrick more practical astronomy sergey"))*.