Perhaps you should try some spelling variations:
"the patrick course practical astronomy survives" » "the patrick course nautical astronomy survives", "the patrick course optical astronomy survives", "the patrick course practical astronomy survey", "the patrick yourself practical astronomy survives", "the patrick concise practical astronomy survives", "the patrick care practical astronomy survives", "the patrick corsi practical astronomy survives", "the patrick case practical astronomy survives", "the patrick count practical astronomy survives"
"the patrick moocs practical astronomy survives" » "the patrick moocs nautical astronomy survives", "the patrick moocs optical astronomy survives", "the patrick moocs practical astronomy survey", "the patrick books practical astronomy survives", "the patrick mics practical astronomy survives", "the patrick colts practical astronomy survives", "the patrick mons practical astronomy survives", "the patrick moyes practical astronomy survives", "the patrick moore's practical astronomy survives"
"the patrick moore positional astronomy studies" » "the patrick moore positional astronomy study", "the patrick moore positional economy studies", "the patrick moore positional astronomy status", "the patrick aware positional astronomy studies", "the patrick pure positional astronomy studies", "the patrick whole positional astronomy studies"
"the patrick moore positional astronomy surveys" » "the patrick moore positional astronomy survey", "the patrick moore positional astronomy surveying", "the patrick moore positional astronomy sergey", "the patrick aware positional astronomy surveys", "the patrick pure positional astronomy surveys", "the patrick whole positional astronomy surveys"

Try widening your search to All Fields.

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 course practical astronomy survives") OR ((("the patrick moore positional astronomy studies") OR ("the patrick moore positional astronomy surveys"))))) OR ("the patrick moocs practical astronomy survives")).
• Removing quotes may allow a broader search: (((( the patrick course practical astronomy survives ) or ((( the patrick moore positional astronomy studies ) or ( the patrick moore positional astronomy surveys ))))) or ( the patrick moocs practical astronomy survives )).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick course practical astronomy survives") or ((("the patrick moore positional astronomy studies") or ("the patrick moore positional astronomy surveys"))))) or ("the patrick moocs practical astronomy survives"))*.