Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
mons practical » coins practical, lens practical, loss practical
patrick colts » patrick bolton, patrick count, patrick carty
patrick mons » patrick moyes, patrick bond, patrick mpondo
patrick colm » patrick coyle, patrick corr, patrick count

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