taken into account is basically a subfilter on top of the filter.
Suppose sometime you don't want to use one filter, then you may write
"false" [without quote], which then will take all other condition but
not that, this way you can probably debug, what condition is causing
your query to have no/less results. Furthermore suppose I want to take
all the email address which are have 'gmail.com' in the email domain,
but for an instance, customer wants to see how many customers are having
the email a...