Perhaps you should try some spelling variations:
"occasional letters; occasional verse" » "occasional letter; occasional verse", "occasional writer; occasional verse", "occasional prayers; occasional verse"
"occasional notess; occasional notes" » "occasional notices; occasional notes", "occasional poems; occasional notes", "occasion notes; occasional notes"
"occasional verses; occasional verse" » "occasional sermons; occasional verse", "occasional letter; occasional verse"

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 notess; occasional notes") OR ((("occasional verses; occasional verse") OR ("occasional letters; occasional verse")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"occasional notess; occasional notes\") or (((\"occasional verses; occasional verse\") OR (\"occasional letters; occasional verse\"))))".
• Removing quotes may allow a broader search: (( occasional notess; occasional notes ) or ((( occasional verses; occasional verse ) OR ( occasional letters; occasional verse )))).
• Adding a wildcard symbol may retrieve word variants: (("occasional notess; occasional notes") or ((("occasional verses; occasional verse") OR ("occasional letters; occasional verse"))))*.