Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy
monkey positional » hockey position
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
more practical » some practical
patrick monkey » patrick mcconney, patrick moloney, patrick moore
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 monkey positional astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (( the patrick more practical astronomy sergey ) or ( the patrick monkey positional astronomy sergey ))*.