Perhaps you should try some spelling variations:
astronomy surveying » astronomy during
practical astronomy » optical astronomy, positional astronomy
practical autonomy » practice autonomy, political autonomy, practical economy
moraes nautical » moraes practical
patrick moraes » patrick moyes, patrick moore's, patrick moore
patrick moocs » patrick moore, patrick mons, patrick moyes

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