Perhaps you should try some spelling variations:
national astronomy » nautical astronomy, regional astronomy, national astronomical
astronomy survives » astronomy survey, astronomy studies
astronomy surveys » astronomy survey, astronomy surveying, astronomy sergey
national autonomy » national economy, regional autonomy, personal autonomy
astronomy series » astronomy sergey, gastronomy services, 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 national ((((astronomy series) OR (astronomy surveys))) OR (astronomy survives)) ) OR ( the patrick moore ((national astronomy) OR (national autonomy)) sergey )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( the patrick moore national ((((astronomy series) or (astronomy surveys))) or (astronomy survives)) ) or ( the patrick moore ((national astronomy) OR (national autonomy)) sergey ))".
• Adding a wildcard symbol may retrieve word variants: (( the patrick moore national ((((astronomy series) or (astronomy surveys))) or (astronomy survives)) ) or ( the patrick moore ((national astronomy) OR (national autonomy)) sergey ))*.