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 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 moocs practical astronomy survey" » "the patrick moocs nautical astronomy survey", "the patrick moocs optical astronomy survey", "the patrick moocs practical astronomy sergey", "the patrick moocs practical autonomy survey", "the patrick moocs practical astronomy surveying", "the patrick mics practical astronomy survey", "the patrick does practical astronomy survey", "the patrick drops practical astronomy survey", "the patrick mons practical astronomy survey", "the patrick moyes practical astronomy survey", "the patrick moore's practical astronomy survey"
"the patrick moore positional astronomy survives" » "the patrick moore positional astronomy studies", "the patrick aware positional astronomy survives", "the patrick pure positional astronomy survives", "the patrick whole positional 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 pure positional astronomy surveys", "the patrick whole positional astronomy surveys", "the patrick moore positional astronomy sergeys", "the patrick moore positional autonomy surveys", "the patrick moore positional astronomy surveyings"

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 moore positional astronomy survives") OR ("the patrick moore positional astronomy surveys"))))) OR ((("the patrick moocs practical astronomy survives") OR ("the patrick moocs practical astronomy survey")))).
• 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 surveys\"))))) or (((\"the patrick moocs practical astronomy survives\") OR (\"the patrick moocs practical astronomy survey\"))))".
• 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 surveys ))))) or ((( the patrick moocs practical astronomy survives ) OR ( the patrick moocs practical astronomy survey )))).
• 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 surveys"))))) or ((("the patrick moocs practical astronomy survives") OR ("the patrick moocs practical astronomy survey"))))*.