First you go to a manga (any manga), then you will find that manga's tags in the right side, you need to go a little down to see the tags. Touch one of the tags even if it's not the one you wanted you will end in a page with all manga with the tag you touched, then in the right side you will see "search other tag" and you write the tag you want there.
I'm sorry for my bad english but I hope that I helped
Go to the top of the page.
Click the yellow square that says, All Genres.
Thanks A lot for this information!!!!
Can anybody tell me how to search for tags here, please?