Perhaps you should try some spelling variations:
practical astronomy » optical astronomy, positional astronomy
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
moore practical » more practical, moocs practical, mouse practical
logs nautical » nos nautical, hoc nautical, some nautical
patrick logs » patrick lord, patrick l.s, patrick love

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 moore practical astronomy survives ) OR ( the patrick logs nautical astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (( the patrick moore practical astronomy survives ) or ( the patrick logs nautical astronomy sergey ))*.