Perhaps you should try some spelling variations:
"occasional papers, occasional prayers" » "occasional papers, occasional poems", "occasional paper, occasional prayers", "occasional poems, occasional prayers", "occasional notes, occasional prayers"
"occasional drivers, occasional writer" » "occasional letters, occasional writer", "occasional prayer, occasional writer", "occasional trainer, occasional writer", "occasional drivers, occasional notes", "occasional drivers, occasions written"
"occasional verse, occasional writer" » "occasional verse, occasional notes", "occasional verse, occasions written"

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