Is there a way to search/ filter titles by multiple categories?

Say I am looking for a manga with "Teacher-student" + "Bullying" + "Traumatic Past" etc.

Yes, you type in the tag, press enter type the other tag. (as usual make sure you spell it the way it shows up in the tags list. )

For the example you said you would put

Student-Teacher Relationship
Bullying
Traumatic Past

in the tags box.
Which only 2 things show up with those tags. [url]http://www.mangaupdates.com/series.html?category=Student-Teacher%2BRelationship_Bullying_Traumatic%2BPast&perpage=50[/url]

Yes yes, I know I make longwinded comments, but that's just me >.<
I should proof read my comments more, but I won't...
So keep in mind I'm filled with typos

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For errors linking in threads

Thanks!
I wasn't aware of this feature.