Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy survives » astronomy survey, astronomy studies
astronomy surveys » astronomy survey, astronomy surveying, astronomy sergey
patrick more » patrick moore, patrick moyes, patrick mkie
patrick some » patrick home, patrick sole, trick some

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 survives ) OR ( the patrick some practical astronomy survives ))) OR ( the patrick more practical astronomy surveys )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( the patrick more practical astronomy survives ) OR ( the patrick some practical astronomy survives ))) or ( the patrick more practical astronomy surveys ))".
• Adding a wildcard symbol may retrieve word variants: (((( the patrick more practical astronomy survives ) OR ( the patrick some practical astronomy survives ))) or ( the patrick more practical astronomy surveys ))*.