You've got to click settings and display all the columns. "dog" is a substring of the company name. Here's the filtering code; it's just a JavaScript `indexOf`:
In our case, we needed to filter on hidden columns (as we still cared about the data behind the scenes), but I'm thinking that this is something that should be optional.
I searched for "dog"
and it yielded these two rows:
Perkins Leblanc Boyd Utah Brunei
Alyce Chavez Bendon Iowa Portugal
I am pretty sure "dog" isn't in either of those rows? What am I missing?