Do mean like a technical school? Something like car repair, electrician, plumbing, beauty college?
If so, it's best to search for such things as "medical English", "hotel English", "English for nurses", "English for beauticians" and things like that.
Here is a
medical English website. It has worksheets and lessons for medical professionals and it might give you some idea on how to target a specific group and their English needs.
I hope that's helpful.