Perhaps you should try some spelling variations:
astronomy series » astronomy sergey, gastronomy services, astronomy survives
mons practical » coins practical, boss practical, lens practical
does practical » notes practical, does practice, globes practical
moocs nautical » moocs practical, hoc nautical, logs nautical
patrick moocs » patrick moore, patrick mons, patrick moyes

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 ((mons practical) OR (does practical)) astronomy series ) OR ( the patrick moocs nautical astronomy series )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( the patrick ((mons practical) OR (does practical)) astronomy series ) or ( the patrick moocs nautical astronomy series ))".
• Adding a wildcard symbol may retrieve word variants: (( the patrick ((mons practical) OR (does practical)) astronomy series ) or ( the patrick moocs nautical astronomy series ))*.