Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy sergey" » "the patrick moocs positional astronomy sergey", "the patrick moocs practical astronomy surveys", "the patrick moocs practical astronomy seven", "the patrick moocs practical astronomy large", "the patrick mics practical astronomy sergey", "the patrick does practical astronomy sergey", "the patrick drops practical astronomy sergey", "the patrick moore practical astronomy sergey", "the patrick mons practical astronomy sergey", "the patrick moyes practical astronomy sergey"
"the patrick moocs optical astronomy sergey" » "the patrick moocs spherical astronomy sergey", "the patrick moocs positional astronomy sergey", "the patrick moocs optical astronomy surveys", "the patrick moocs optical astronomy seven", "the patrick moocs optical astronomy large", "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 dots optical astronomy sergey"
"the patrick board nautical astronomy survey" » "the patrick board nautical astronomy surveys", "the patrick board nautical autonomy survey", "the patrick board nautical astronomy surveying", "the patrick board practical astronomy survey", "the patrick board national astronomy survey", "the patrick board neutral astronomy survey", "the patrick bond nautical astronomy survey", "the patrick hubbard nautical astronomy survey", "the patrick leonard nautical astronomy survey"

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