Perhaps you should try some spelling variations:
occasional letter » occasional verse
occasional writer » occasions written
2f number » 2 number, 22 number, 29 number
23 number » 2 number, 3 number, 22 number
21 number » 2 number, 1 number, 22 number

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: %((((22((occasional letter) OR (occasional notes))) OR (occasional writer))) OR (((occasional letter) OR (occasional notes)))) %((((2f number) OR (23 number))) OR (21 number)) 1%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22((occasional letter) OR (occasional notes))) or (occasional writer))) or (((occasional letter) OR (occasional notes)))) %((((2f number) or (23 number))) or (21 number)) 1%22".
• Adding a wildcard symbol may retrieve word variants: %((((22((occasional letter) OR (occasional notes))) or (occasional writer))) or (((occasional letter) OR (occasional notes)))) %((((2f number) or (23 number))) or (21 number)) 1%22*.