Perhaps you should try some spelling variations:
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
more nautical » mile nautical, some nautical, board nautical
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 practical) OR (some practical)) astronomy sergey ) OR ( the patrick more nautical astronomy sergey )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( the patrick ((more practical) OR (some practical)) astronomy sergey ) or ( the patrick more nautical astronomy sergey ))".
• Adding a wildcard symbol may retrieve word variants: (( the patrick ((more practical) OR (some practical)) astronomy sergey ) or ( the patrick more nautical astronomy sergey ))*.