Comments of chapter undefined of The Mechanic and the Earthbender

cant find it

I dont know jow to use that site, I get thier and its just search by name type and type of fanfic of certain atoreis, bot just a general one of popularity or raiting, also I have no clue how to find the mega canfics that travel worlds or hniverses bc one of the novels I was reading that hopped worlds went iver to it and idk how to find it