Perhaps you should try some spelling variations:
"the patrick moore optical astronomy series" » "the patrick more optical astronomy series"
"the patrick core optical gastronomy services" » "the patrick code optical gastronomy services", "the patrick core optical gastrostomy services"

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