Thanks macropod and gmaxey.
I was trying to modify this mask unsucessfull.
"([!.:;""])^13"
Works fine and does not find when there's a !, ., : or ; (for a single character it works fine).
The problem is that I want it to not find also when there's a exact sequence of character like "xyz".
I tried with "([!.:;<xyz>""])^13" not works.
I read the link but didn't find something exactly like I was looking for.