Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, positional astronomy
optical astronomy » nautical astronomy, spherical astronomy, positional astronomy
22the patrick » father patrick, late patrick, bate patrick
patrick more » patrick moore, patrick moyes, patrick mkie

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "%22the patrick more ((practical astronomy) OR (optical astronomy)) series%22".
• Adding a wildcard symbol may retrieve word variants: %22the patrick more ((practical astronomy) OR (optical astronomy)) series%22*.