A search for "email_crlf" returns nothing

[nep]

Description of the problem
A search for "email_crlf" returns nothing. It should return https://docs.expressionengine.com/latest/general/system-configuration-overrides.html#email_crlf

This could be because the page is too long. If so, all too-long pages should be broken up into pages short enough to be fully indexed. Can a list be provided?

I'll help if I know what to work on.