Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy survey" » "the patrick moocs optical astronomy survey", "the patrick moocs positional astronomy survey", "the patrick moocs practical astronomy surveys", "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 moyes practical astronomy survey", "the patrick moore's practical astronomy survey"
"the patrick moore practical astronomy survey" » "the patrick moore optical astronomy survey", "the patrick moore positional astronomy survey", "the patrick moore practical astronomy surveys", "the patrick moore practical autonomy survey", "the patrick moore practical astronomy surveying", "the patrick more practical astronomy survey", "the patrick mouse practical astronomy survey", "the patrick course practical astronomy survey"
"the patrick moocs practical astronomy seven" » "the patrick moocs optical astronomy seven", "the patrick moocs positional astronomy seven", "the patrick mics practical astronomy seven", "the patrick does practical astronomy seven", "the patrick drops practical astronomy seven", "the patrick moocs practical astronomy some", "the patrick moocs practical astronomy science", "the patrick moocs practical astronomy between", "the patrick moyes practical astronomy seven", "the patrick moore's practical astronomy seven"
"the patrick mons nautical astronomy sergey" » "the patrick mons nautical astronomy surveys", "the patrick mons nautical astronomy large", "the patrick mons nautical astronomy society", "the patrick logs nautical astronomy sergey", "the patrick nos nautical astronomy sergey", "the patrick hoc nautical astronomy sergey", "the patrick moyes nautical astronomy sergey", "the patrick bond nautical astronomy sergey", "the patrick mpondo nautical astronomy sergey"

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