Perhaps you should try some spelling variations:
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
more positional » pure positional, more positioning, aware positional
more nautical » mile nautical, some nautical, more practical
patrick more » patrick moore, patrick moyes, patrick mkie

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 more nautical astronomy sergey ) OR ( the patrick more positional astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (( the patrick more nautical astronomy sergey ) or ( the patrick more positional astronomy sergey ))*.