Perhaps you should try some spelling variations:
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"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 abcs practical astronomy survey", "the patrick ics practical astronomy survey", "the patrick moore practical astronomy survey", "the patrick mons practical astronomy survey", "the patrick moyes practical astronomy survey"
"the patrick logs nautical astronomy sergey" » "the patrick logs nautical astronomy surveys", "the patrick logs nautical astronomy seven", "the patrick logs nautical astronomy large", "the patrick nos nautical astronomy sergey", "the patrick hoc nautical astronomy sergey", "the patrick lord nautical astronomy sergey", "the patrick l.s nautical astronomy sergey", "the patrick love nautical astronomy sergey"
"the trick some nautical astronomy sergey" » "the trick some nautical astronomy surveys", "the trick some nautical astronomy seven", "the trick some nautical astronomy large", "the trick some analytical astronomy sergey", "the trick some practical astronomy sergey", "the trick some critical astronomy sergey", "the tricks some nautical astronomy sergey", "the track some nautical astronomy sergey", "the kick some nautical astronomy sergey"
"the risk some nautical astronomy sergey" » "the risk some nautical astronomy surveys", "the risk some nautical astronomy seven", "the risk some nautical astronomy large", "the risk some analytical astronomy sergey", "the risk some practical astronomy sergey", "the risk some critical astronomy sergey", "the risk score nautical astronomy sergey"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("the patrick moocs practical astronomy sergey") OR ("the patrick moocs practical astronomy survey"))) OR ((("the patrick logs nautical astronomy sergey") OR ((("the trick some nautical astronomy sergey") OR ("the risk some nautical astronomy sergey")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"the patrick moocs practical astronomy sergey\") OR (\"the patrick moocs practical astronomy survey\"))) or (((\"the patrick logs nautical astronomy sergey\") or (((\"the trick some nautical astronomy sergey\") or (\"the risk some nautical astronomy sergey\"))))))".
• Removing quotes may allow a broader search: (((( the patrick moocs practical astronomy sergey ) OR ( the patrick moocs practical astronomy survey ))) or ((( the patrick logs nautical astronomy sergey ) or ((( the trick some nautical astronomy sergey ) or ( the risk some nautical astronomy sergey )))))).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick moocs practical astronomy sergey") OR ("the patrick moocs practical astronomy survey"))) or ((("the patrick logs nautical astronomy sergey") or ((("the trick some nautical astronomy sergey") or ("the risk some nautical astronomy sergey"))))))*.