Perhaps you should try some spelling variations:
practical astronomy » optical astronomy, positional astronomy
practical autonomy » practice autonomy, political autonomy, practical economy
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
moore practical » more practical, moocs practical, mouse practical
autonomy survey » astronomy survey, autonomy surgery, astronomy surveys
maill nautical » mile nautical, martial nautical
mkie practical » more practical, made practical, make practical
patrick maill » patrick neill, patrick gill, patrick baillie
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 autonomy survey ) OR ( the patrick maill nautical astronomy sergey ))) OR ( the patrick mkie practical astronomy sergey )).
• Adding a wildcard symbol may retrieve word variants: (((( the patrick moore practical autonomy survey ) or ( the patrick maill nautical astronomy sergey ))) or ( the patrick mkie practical astronomy sergey ))*.