Perhaps you should try some spelling variations:
"occasional prayers; occasional letter" » "occasional writer; occasional letter", "occasional prayers; occasional writer", "occasional prayers; occasional verse"
"occasional poems; occasional notes" » "occasional verse; occasional notes"

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: (("occasional prayers; occasional letter") OR ("occasional poems; occasional notes")).
• Removing quotes may allow a broader search: (( occasional prayers; occasional letter ) or ( occasional poems; occasional notes )).
• Adding a wildcard symbol may retrieve word variants: (("occasional prayers; occasional letter") or ("occasional poems; occasional notes"))*.