Perhaps you should try some spelling variations:
"the patrick moore practical astronomy survives" » "the patrick moore optical astronomy survives", "the patrick moore practical astronomy survey", "the patrick moore practical astronomy surveys", "the patrick more practical astronomy survives", "the patrick mouse practical astronomy survives", "the patrick course practical astronomy survives"
"the patrick moocs practical astronomy studies" » "the patrick moocs optical astronomy studies", "the patrick moocs practical astronomy study", "the patrick moocs practical economy studies", "the patrick moocs practical astronomy status", "the patrick books practical astronomy studies", "the patrick mics practical astronomy studies", "the patrick colts practical astronomy studies", "the patrick mons practical astronomy studies", "the patrick moyes practical astronomy studies", "the patrick moore's practical astronomy studies"
"the patrick moore positional astronomy survives" » "the patrick moore positional astronomy survey", "the patrick moore positional astronomy surveys", "the patrick aware positional astronomy survives", "the patrick pure positional astronomy survives", "the patrick whole positional astronomy survives"
"the patrick moocs nautical astronomy survives" » "the patrick moocs nautical astronomy survey", "the patrick moocs nautical astronomy surveys", "the patrick hoc nautical astronomy survives", "the patrick logs nautical astronomy survives", "the patrick nos nautical astronomy survives", "the patrick mons nautical astronomy survives", "the patrick moyes nautical astronomy survives", "the patrick moore's nautical astronomy survives"

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