at the top left of most MT pages, you'll find a search bar. simply search per series that you are seeking.
sometimes, if you know the character name, this can and will narrow down the search, but not all the time. if it's
an unknown scan those are even more trickier, and harder to search for, but not everything on this site has a tag
either, but most of the known things, such as bleach and naruto does. as for searching for two tags at once to better
search, this can fail sometimes, resulting in not finding what you want, or finding more than you expected. as the
tagging system changes a lot, and some of it's broken, it's better to just stick to a more simple method of
searching by series or by name, combining could leave you searching for hours on end, even further into scans that
don't hold any value whatsoever. and crossover scans are just as difficult, but a bit of searching the site will
result in most duplicates being uploaded. however, there are cases where your scan could be better than the other one,
or with or without text, etc, you could try uploading it, or simply asking a scan mod about such matters and they will
get around to helping you shortly.
also, you can use the drop down on the right of the search bar and you can search the forums for helpful topics as well
in regards to scan help, here's one to start you off http://forum.minitokyo.net/t73797 hope this helps some more, if not just
let us know, and there are scanner mods you can ask questions to as well, they will answer them, as they are super busy
it can take a short bit but they will get back to you on scanner/scan related questions.