Perhaps you should try some spelling variations:
"occasional writers, occasional writer" » "occasional drivers, occasional writer", "occasional writings, occasional writer", "occasional prayers, occasional writer", "occasional notess, occasional notes", "occasions writtens, occasions written"
"occasional papers, occasional poems" » "occasional paper, occasional poems", "occasional prayers, occasional poems", "occasional notes, occasional poems", "occasional papers, occasional notes"
"occasional verse, occasional poems" » "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 writers, occasional writer") OR ((("occasional papers, occasional poems") OR ("occasional verse, occasional poems")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"occasional writers, occasional writer\") or (((\"occasional papers, occasional poems\") OR (\"occasional verse, occasional poems\"))))".
• Removing quotes may allow a broader search: (( occasional writers, occasional writer ) or ((( occasional papers, occasional poems ) OR ( occasional verse, occasional poems )))).
• Adding a wildcard symbol may retrieve word variants: (("occasional writers, occasional writer") or ((("occasional papers, occasional poems") OR ("occasional verse, occasional poems"))))*.