I search for
?. CardDAV: ?bbcode
with this result - s. bottom - so the result list is empty, although the Hubzilla help contains the string "CardDAV". What am I doing wrong? Can you please name a filter where the result list is not empty?
EDIT 2021-09-12 OK, I have built an example
Is it defined in Hubzilla or elsewhere help how the syntax of the queries / filters for the search is described in Hubzilla help?