Perhaps you should try some spelling variations:
astronomy survey » astronomy surveys, astronomy sergey, astronomy surveying
moocs practical » books practical, mics practical, colts practical
autonomy survey » autonomy surgery, astronomy surveys, autonomy strive
taxonomy survey » taxonomic survey
moore nautical » board nautical, mile nautical, moore national
patrick moocs » patrick mons, patrick moyes, patrick moore's

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