[Katsunami]

Murphy? Something could go wrong in that post, so it did.

() are parentheses .
[] are brackets.
{} are braces.
<> are chevrons.

So in Calibre's search, use parentheses , not brackets, or it won't work.

#$%@$#%$@#% MURPHY!! DIE!11

Spoiler:

In Dutch, they are all called brackets, or "haakjes":

() : ronde haakjes (round brackets).
[] : vierkante haakjes (square brackets).
{} : gekrulde haakjes (curly brackets).
<> : gebroken haakjes (broken brackets).