Perhaps you should try some spelling variations:
astronomy surveys » astronomy surveying, astronomy survives, astronomy sergey
astronomy survey » astronomy sergey, autonomy survey, astronomy surveying
patrick moocs » patrick moore, patrick moyes, patrick moore's
patrick mons » patrick moyes, patrick bond, patrick mpondo

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