Perhaps you should try some spelling variations:
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"the patrick moocs practical astronomy seven" » "the patrick moocs optical astronomy seven", "the patrick moocs positional astronomy seven", "the patrick books practical astronomy seven", "the patrick colts practical astronomy seven", "the patrick coins practical astronomy seven", "the patrick moocs practical astronomy some", "the patrick moocs practical astronomy science", "the patrick moocs practical astronomy between", "the patrick moore practical astronomy seven", "the patrick mons practical astronomy seven", "the patrick moyes practical astronomy seven"
"the patrick moocs nautical astronomy surveys" » "the patrick moocs nautical astronomy surveying", "the patrick moocs nautical astronomy survives", "the patrick moocs nautical autonomy survey", "the patrick moocs nautical autonomy surveys", "the patrick moocs nautical astronomy surveyings", "the patrick moocs nautical astronomy survivess", "the patrick hoc nautical astronomy surveys", "the patrick logs nautical astronomy surveys", "the patrick nos nautical astronomy surveys", "the patrick moore nautical astronomy surveys", "the patrick mons nautical astronomy surveys", "the patrick moyes nautical astronomy surveys"
"the patrick moocs nautical astronomy survey" » "the patrick moocs nautical autonomy survey", "the patrick moocs nautical astronomy surveying", "the patrick moocs nautical astronomy survives", "the patrick hoc nautical astronomy survey", "the patrick logs nautical astronomy survey", "the patrick nos nautical astronomy survey", "the patrick moore nautical astronomy survey", "the patrick mons nautical astronomy survey", "the patrick moyes nautical astronomy survey"

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