Perhaps you should try some spelling variations:
astronomy surveying » astronomy during
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
mons practical » coins practical, boss practical, lens practical
patrick mons » patrick moyes, patrick bond, patrick mpondo
d nautical » _ nautical, a nautical, i nautical
2 nautical » _ nautical, a nautical, 200 nautical

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 mons practical astronomy survives ) OR ( the patrick ((d nautical) OR (2 nautical)) astronomy surveying )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( the patrick mons practical astronomy survives ) or ( the patrick ((d nautical) OR (2 nautical)) astronomy surveying ))".
• Adding a wildcard symbol may retrieve word variants: (( the patrick mons practical astronomy survives ) or ( the patrick ((d nautical) OR (2 nautical)) astronomy surveying ))*.