Perhaps you should try some spelling variations:
astronomy surveys » astronomy survey, astronomy surveying, astronomy survives
moore positional » aware positional, pure positional, whole positional
astronomy sergey » astronomy survey, astronomy seven, astronomy large

You may be able to get more results by adjusting your search query.

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