Perhaps you should try some spelling variations:
optical astronomy » spherical astronomy, positional astronomy
astronomy surveys » astronomy survey, astronomy surveying, astronomy survives
astronomy sergey » astronomy survey, astronomy seven, astronomy large
board nautical » board practical, board national, board neutral
some nautical » some practical, some critical, some natural
patrick board » patrick bond, patrick hubbard, patrick leonard
patrick more » patrick moore, patrick moyes, patrick mkie
more optical » moire optical, core optical, more optimal

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