Perhaps you should try some spelling variations:
practical astronomy » optical astronomy, positional astronomy
practical autonomy » practice autonomy, political autonomy, practical economy
astronomy survey » astronomy surveys, astronomy surveying, astronomy survives
astronomy sergey » astronomy surveys, astronomy seven, astronomy large
moore practical » more practical, moocs practical, mouse practical
autonomy survey » autonomy surgery, astronomy surveys, taxonomy survey
board nautical » board practical, board national, board neutral
mkie practical » more practical, made practical, make practical
patrick board » patrick bond, patrick hubbard, patrick leonard
patrick mkie » patrick mackie, patrick mein, patrick m

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