Perhaps you should try some spelling variations:
practical astronomy » optical astronomy, positional astronomy
national autonomy » national economy, regional autonomy, personal autonomy
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
autonomy survey » astronomy survey, autonomy surgery, astronomy surveys
more practical » some practical
moore national » moors national, more national, before national
some nautical » some analytical, some practical, some critical
patrick more » patrick moyes, patrick mkie, patrick mark
patrick some » patrick home, patrick sole, trick some

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 more practical astronomy sergey ) OR ((( the patrick some nautical astronomy sergey ) OR ( the patrick moore national autonomy survey )))).
• Adding a wildcard symbol may retrieve word variants: (( the patrick more practical astronomy sergey ) or ((( the patrick some nautical astronomy sergey ) or ( the patrick moore national autonomy survey ))))*.