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

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 positional astronomy sergey ) OR ( the patrick moore positional astronomy survey ))) OR ( the patrick moore positional astronomy surveys )).
• 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 survey ))) 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 survey ))) or ( the patrick moore positional astronomy surveys ))*.