Perhaps you should try some spelling variations:
"the patrick moore practical astronomy survives" » "the patrick moore nautical astronomy survives", "the patrick moore optical astronomy survives", "the patrick moore practical astronomy studies", "the patrick more practical astronomy survives", "the patrick mouse practical astronomy survives", "the patrick course practical astronomy survives"
"the patrick moocs practical astronomy survives" » "the patrick moocs nautical astronomy survives", "the patrick moocs optical astronomy survives", "the patrick moocs practical astronomy studies", "the patrick books practical astronomy survives", "the patrick mics practical astronomy survives", "the patrick colts practical astronomy survives", "the patrick mons practical astronomy survives", "the patrick moyes practical astronomy survives", "the patrick moore's practical astronomy survives"
"the patrick moore positional astronomy survives" » "the patrick moore positional astronomy studies", "the patrick aware positional astronomy survives", "the patrick whole positional astronomy survives", "the patrick more positioning astronomy survives"
"the patrick moore positional astronomy surveys" » "the patrick moore positional astronomy surveying", "the patrick moore positional astronomy sergey", "the patrick moore positional autonomy survey", "the patrick aware positional astronomy surveys", "the patrick whole positional astronomy surveys", "the patrick more positioning astronomy surveys", "the patrick moore positional astronomy sergeys", "the patrick moore positional autonomy surveys", "the patrick moore positional astronomy surveyings"
"the patrick pure positional astronomy surveys" » "the patrick pure positional astronomy surveying", "the patrick pure positional astronomy sergey", "the patrick pure positional autonomy survey", "the patrick pure positional astronomy sergeys", "the patrick pure positional autonomy surveys", "the patrick pure positional astronomy surveyings", "the patrick aware positional astronomy surveys", "the patrick pure conditional astronomy surveys", "the patrick pure rotational astronomy surveys", "the patrick burke positional astronomy surveys", "the patrick part positional astronomy surveys", "the patrick burk positional astronomy surveys"
"the patrick moore positional astronomy survey" » "the patrick aware positional astronomy survey", "the patrick whole positional astronomy survey", "the patrick more positioning astronomy survey", "the patrick moore positional astronomy sergey", "the patrick moore positional autonomy survey", "the patrick moore positional astronomy surveying"

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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 moore positional astronomy survives") OR ("the patrick moore positional astronomy survey"))) OR ((("the patrick moore positional astronomy surveys") OR ("the patrick pure positional astronomy surveys"))))))) OR ("the patrick moocs 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 moore positional astronomy survives\") or (\"the patrick moore positional astronomy survey\"))) or (((\"the patrick moore positional astronomy surveys\") OR (\"the patrick pure positional astronomy surveys\"))))))) or (\"the patrick moocs practical astronomy survives\"))".
• Removing quotes may allow a broader search: (((( the patrick moore practical astronomy survives ) or ((((( the patrick moore positional astronomy survives ) or ( the patrick moore positional astronomy survey ))) or ((( the patrick moore positional astronomy surveys ) OR ( the patrick pure positional astronomy surveys ))))))) or ( the patrick moocs practical astronomy survives )).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick moore practical astronomy survives") or ((((("the patrick moore positional astronomy survives") or ("the patrick moore positional astronomy survey"))) or ((("the patrick moore positional astronomy surveys") OR ("the patrick pure positional astronomy surveys"))))))) or ("the patrick moocs practical astronomy survives"))*.