Perhaps you should try some spelling variations:
"the patrick core optical astronomy study" » "the patrick core spherical astronomy study", "the patrick core positional astronomy study", "the patrick core optical astronomy studies", "the patrick core optical astronomy south", "the patrick core optical astronomy star", "the patrick corr optical astronomy study", "the patrick corsi optical astronomy study", "the patrick coyle optical astronomy study", "the patrick mode optical astronomy study", "the patrick large optical astronomy study"
"the patrick moore nautical astronomy series" » "the patrick moore nautical astronomy sergey", "the patrick moore nautical gastronomy services", "the patrick moore nautical astronomy survives", "the patrick board nautical astronomy series", "the patrick mile nautical astronomy series", "the patrick moore national astronomy series"
"the patrick moore nautical astronomy survey" » "the patrick moore nautical astronomy surveys", "the patrick moore nautical astronomy sergey", "the patrick moore nautical autonomy survey", "the patrick board nautical astronomy survey", "the patrick mile nautical astronomy survey", "the patrick moore national astronomy survey"

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 study") OR ((("the patrick moore nautical astronomy series") OR ("the patrick moore nautical astronomy survey")))).
• Removing quotes may allow a broader search: (( the patrick core optical astronomy study ) or ((( the patrick moore nautical astronomy series ) or ( the patrick moore nautical astronomy survey )))).
• Adding a wildcard symbol may retrieve word variants: (("the patrick core optical astronomy study") or ((("the patrick moore nautical astronomy series") or ("the patrick moore nautical astronomy survey"))))*.