Perhaps you should try some spelling variations:
"the patrick core optical astronomy studies" » "the patrick core spherical astronomy studies", "the patrick core positional astronomy studies", "the patrick core optical astronomy study", "the patrick core optical astronomy status", "the patrick core optical astronomy die", "the patrick corr optical astronomy studies", "the patrick corsi optical astronomy studies", "the patrick coyle optical astronomy studies", "the patrick large optical astronomy studies", "the patrick wave optical astronomy studies"
"the patrick moore nautical astronomy series" » "the patrick moore nautical gastronomy services", "the patrick moore nautical astronomy survives", "the patrick moore nautical astronomy surveys", "the patrick board nautical astronomy series", "the patrick mile nautical astronomy series", "the patrick moore national astronomy series"
"the patrick moore nautical astronomy sergey" » "the patrick moore nautical astronomy survey", "the patrick moore nautical astronomy surveys", "the patrick moore nautical astronomy seven", "the patrick board nautical astronomy sergey", "the patrick mile nautical astronomy sergey", "the patrick moore national astronomy sergey"
"the patrick core optical economy studies" » "the patrick core poltical economy studies", "the patrick core political economy studies", "the patrick core optimal economic studies", "the patrick core optical economic studies", "the patrick core optical economy stupid", "the patrick corr optical economy studies", "the patrick corsi optical economy studies", "the patrick coyle optical economy studies", "the patrick large optical economy studies", "the patrick wave optical economy studies"

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 core optical astronomy studies") OR ("the patrick core optical economy studies"))) OR ((("the patrick moore nautical astronomy series") OR ("the patrick moore nautical astronomy sergey")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"the patrick core optical astronomy studies\") or (\"the patrick core optical economy studies\"))) or (((\"the patrick moore nautical astronomy series\") OR (\"the patrick moore nautical astronomy sergey\"))))".
• Removing quotes may allow a broader search: (((( the patrick core optical astronomy studies ) or ( the patrick core optical economy studies ))) or ((( the patrick moore nautical astronomy series ) OR ( the patrick moore nautical astronomy sergey )))).
• Adding a wildcard symbol may retrieve word variants: (((("the patrick core optical astronomy studies") or ("the patrick core optical economy studies"))) or ((("the patrick moore nautical astronomy series") OR ("the patrick moore nautical astronomy sergey"))))*.