Perhaps you should try some spelling variations:
"the patrick moocs practical astronomy sergey" » "the patrick moocs optical astronomy sergey", "the patrick moocs positional astronomy sergey", "the patrick moocs practical astronomy survey", "the patrick moocs practical astronomy surveys", "the patrick moocs practical astronomy seven", "the patrick books practical astronomy sergey", "the patrick mics practical astronomy sergey", "the patrick colts practical astronomy sergey", "the patrick moore practical astronomy sergey", "the patrick mons practical astronomy sergey", "the patrick moyes practical astronomy sergey"
"the patrick a nautical astronomy sergey" » "the patrick a nautical astronomy survey", "the patrick a nautical astronomy surveys", "the patrick a nautical astronomy seven", "the patrick 200 nautical astronomy sergey"
"the patrick _ nautical astronomy sergey" » "the patrick _ nautical astronomy survey", "the patrick _ nautical astronomy surveys", "the patrick _ nautical astronomy seven"

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 a nautical astronomy sergey") OR ("the patrick _ 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 a nautical astronomy sergey\") OR (\"the patrick _ nautical astronomy sergey\"))))".
• Removing quotes may allow a broader search: (( the patrick moocs practical astronomy sergey ) or ((( the patrick a nautical astronomy sergey ) OR ( the patrick _ nautical astronomy sergey )))).
• Adding a wildcard symbol may retrieve word variants: (("the patrick moocs practical astronomy sergey") or ((("the patrick a nautical astronomy sergey") OR ("the patrick _ nautical astronomy sergey"))))*.