Break line in TOC

[Valter Filipe Silva]

Hello,


How i can break a line in TOC ??
my problem is the right margin.... The section name is to big to fit the 
defined margins.

I try:
\section [TOC \\ title]{document \\ title}

in the first argument did not work, in the socond it works great !
Any ideia ?
Best regards


Valter