Perhaps you should try some spelling variations:
practical astronomy » optical astronomy, positional astronomy
national astronomy » national autonomy, regional astronomy, national astronomical
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
moore national » moors national, more national, before national

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