Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy sergey" » "the patrick moocs optical 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 mons practical astronomy sergey", "the patrick moyes practical astronomy sergey"
"the patrick bond practical astronomy sergey" » "the patrick bond optical astronomy sergey", "the patrick bond positional astronomy sergey", "the patrick bond practical astronomy survey", "the patrick bond practical astronomy surveys", "the patrick bond practical astronomy seven", "the patrick bonds practical astronomy sergey", "the patrick bono practical astronomy sergey", "the patrick beyond practical astronomy sergey", "the patrick d practical astronomy sergey", "the patrick b practical astronomy sergey", "the patrick d.d practical astronomy sergey"
"the patrick moore practical astronomy sergey" » "the patrick moore optical astronomy sergey", "the patrick moore positional astronomy sergey", "the patrick moore practical astronomy survey", "the patrick moore practical astronomy surveys", "the patrick moore practical astronomy seven", "the patrick more practical astronomy sergey", "the patrick mouse practical astronomy sergey", "the patrick course practical astronomy sergey"
"the patrick moore's nautical astronomy sergey" » "the patrick moore's nautical astronomy survey", "the patrick moore's nautical astronomy surveys", "the patrick moore's nautical astronomy seven", "the patrick moore's notices astronomy sergey"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("the patrick moocs practical astronomy sergey") OR ("the patrick bond practical astronomy sergey"))) OR ("the patrick moore practical astronomy sergey"))) OR ("the patrick moore's nautical astronomy sergey")).
• Removing quotes may allow a broader search: (((((( the patrick moocs practical astronomy sergey ) or ( the patrick bond practical astronomy sergey ))) or ( the patrick moore practical astronomy sergey ))) or ( the patrick moore's nautical astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (((((("the patrick moocs practical astronomy sergey") or ("the patrick bond practical astronomy sergey"))) or ("the patrick moore practical astronomy sergey"))) or ("the patrick moore's nautical astronomy sergey"))*.