Perhaps you should try some spelling variations:
"the patrick moore practical astronomy survives" » "the patrick moore positional astronomy survives", "the patrick moore practical astronomy survey", "the patrick moore practical astronomy surveys", "the patrick moocs practical astronomy survives", "the patrick mouse practical astronomy survives", "the patrick course practical astronomy survives"
"the patrick more practical astronomy survives" » "the patrick more positional astronomy survives", "the patrick more practical astronomy survey", "the patrick more practical astronomy surveys", "the patrick some practical astronomy survives", "the patrick moyes practical astronomy survives", "the patrick mkie practical astronomy survives", "the patrick mark practical astronomy survives"
"the patrick more practical astronomy studies" » "the patrick more positional astronomy studies", "the patrick more practical astronomy study", "the patrick more practical economy studies", "the patrick more practical astronomy status", "the patrick some practical astronomy studies", "the patrick moyes practical astronomy studies", "the patrick mkie practical astronomy studies", "the patrick mark practical astronomy studies"
"the patrick more optical astronomy survives" » "the patrick more optical astronomy survey", "the patrick more optical astronomy surveys", "the patrick more spherical astronomy survives", "the patrick more positional astronomy survives", "the patrick moyes optical astronomy survives", "the patrick mkie optical astronomy survives", "the patrick mark optical astronomy survives", "the patrick moire optical astronomy survives", "the patrick mode optical astronomy survives", "the patrick core optical astronomy survives"
"the patrick more nautical astronomy studies" » "the patrick more nautical astronomy study", "the patrick more nautical economy studies", "the patrick more nautical astronomy status", "the patrick mile nautical astronomy studies", "the patrick some nautical astronomy studies", "the patrick board nautical astronomy studies", "the patrick moyes nautical astronomy studies", "the patrick mkie nautical astronomy studies", "the patrick mark nautical astronomy studies"

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 moore practical astronomy survives") OR ((((("the patrick more practical astronomy survives") OR ("the patrick more optical astronomy survives"))) OR ((("the patrick more practical astronomy studies") OR ("the patrick more nautical astronomy studies")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"the patrick moore practical astronomy survives\") or (((((\"the patrick more practical astronomy survives\") or (\"the patrick more optical astronomy survives\"))) or (((\"the patrick more practical astronomy studies\") OR (\"the patrick more nautical astronomy studies\"))))))".
• Removing quotes may allow a broader search: (( the patrick moore practical astronomy survives ) or ((((( the patrick more practical astronomy survives ) or ( the patrick more optical astronomy survives ))) or ((( the patrick more practical astronomy studies ) OR ( the patrick more nautical astronomy studies )))))).
• Adding a wildcard symbol may retrieve word variants: (("the patrick moore practical astronomy survives") or ((((("the patrick more practical astronomy survives") or ("the patrick more optical astronomy survives"))) or ((("the patrick more practical astronomy studies") OR ("the patrick more nautical astronomy studies"))))))*.