Hello, welcome to the forums.
Do you know about/use the v-sets?
Are you talking about Nom Bomb type squads, or melee Jedi Hunter type squads?
As a rule of thumb, most squads that have lots of shooters and few jedi should be able to beat Vong squads.
As an older example, just using original Wizards of the Coast pieces, this should do well against Vong. It has Lobot, so it can bring in Treadwell Droids to counter super-stealth:
http://www.bloomilk.com/Squad/83157/ig-86-nute-gunray-whorm - lots of IG-86s and tech.
As a newer example, using v-set pieces, this should also do well with lots of damage, and death shots:
http://www.bloomilk.com/Squad/117045/roll-the-bones