Is also possible to call the subsearches in the main search. Actually, you can do it with
any search so long as you're careful not to recurse.
I do this for my Cleanup search:
Code:
(search:"=Cleanup.Fanfic Issues")
OR (search:"=Cleanup.Formats")
OR (search:"=Cleanup.Metadata Cleanup")
And then here's Cleanup.Metadata Cleanup:
Code:
(search:"=Cleanup.Metadata Cleanup.Cleanup Tags")
OR (search:"=Cleanup.Metadata Cleanup.Convert ISBNs")
OR (search:"=Cleanup.Metadata Cleanup.Missing Kobo collection")
OR search:"=Cleanup.Metadata Cleanup.Missing Kobo Path"
OR (search:"=Cleanup.Metadata Cleanup.Missing Language")
OR (search:"=Cleanup.Metadata Cleanup.Missing Page Count")
Advantages: it executes quite a bit faster than making them all one giant search, and it's a lot easier to narrow down a specific criteria.