Perhaps you should try some spelling variations:
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"the patrick moocs practical astronomy survives" » "the patrick moocs nautical astronomy survives", "the patrick moocs optical astronomy survives", "the patrick moocs positional astronomy survives", "the patrick moocs practical astronomy survey", "the patrick moocs practical astronomy surveys", "the patrick moocs practical astronomy studies", "the patrick mics practical astronomy survives", "the patrick does practical astronomy survives", "the patrick drops practical astronomy survives", "the patrick mons practical astronomy survives", "the patrick moyes practical astronomy survives", "the patrick moore's practical astronomy survives"
"the patrick more practical astronomy survives" » "the patrick more nautical astronomy survives", "the patrick more optical astronomy survives", "the patrick more positional astronomy survives", "the patrick more practical astronomy survey", "the patrick more practical astronomy surveys", "the patrick more practical astronomy studies", "the patrick some practical astronomy survives", "the patrick moyes practical astronomy survives", "the patrick mkie practical astronomy survives", "the patrick mark practical 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 survives"))) OR ("the patrick more practical astronomy survives")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"the patrick moore practical astronomy survives\") OR (\"the patrick moocs practical astronomy survives\"))) or (\"the patrick more practical astronomy survives\"))".
• Removing quotes may allow a broader search: (((( the patrick moore practical astronomy survives ) OR ( the patrick moocs practical astronomy survives ))) or ( the patrick more practical astronomy survives )).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick moore practical astronomy survives") OR ("the patrick moocs practical astronomy survives"))) or ("the patrick more practical astronomy survives"))*.