Extract Data

Hello all,

Would anyone be able to help? Using example data below and the length will be different for each row.

in cell A1 data:
John Doe XXX X-1 Do Not Know XXX-Xvnbnn abbn-mnmmm-22288

in B1>> I would like the formula to look for 2 hyphens from right and return that set of data. Below is the formula I use, it gives some, but not working well.
=RIGHT(B2, SEARCH("-", B2)-5)

The result in B1 would be: abbn-mnmmm-22288

Thank you kindly for helping!

TMS, Thank you so much! This works great! Thanks!