Perhaps you should try some spelling variations:
occasional prayers » occasional poems
occasional letter » occasional notes
occasional writer » occasional notes, occasions written
occasional paper » occasional papers, occasional notes, occasional poems

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