How do I combine categories when searching?

for instance I was looking for Phobias.. [url]http://www.mangaupdates.com/series.html?category=Phobia[url]
And I wanted to combine it with split personality's.. How do I combine them so that only titles with both categories come up? And is it possible to add even a third category?

Thankyou.. and sorry if this was already answered but i searched and couldn't find an answer..

[img]http://img.userbars.pl/69/13603.gif[/img]

Genre search - in the text box, put each category you want on a separate line.

Result is only 1 manga in the case of phobia and split personality
[url]http://www.mangaupdates.com/series.html?category=phobia_split%2Bpersonality&perpage=50[/url]

"It is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science."

Thankyou! I didnt notice the category option under genre search!

[img]http://img.userbars.pl/69/13603.gif[/img]