Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
images positional » images conditional, images positioning, leagues positional
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
moyes positional » monkey positional, cues positional, holds positional
more practical » some 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 practical astronomy sergey ) OR ( the patrick ((moyes positional) OR (images positional)) astronomy sergey ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( the patrick more practical astronomy sergey ) or ( the patrick ((moyes positional) OR (images positional)) astronomy sergey ))*".