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