Help with a string please

[Heidi Kay]

Hi there!  I am very new to this site and to x-ray searching in general.

This is the type of search I typically run:

site:linkedin.com "search for people you know" "current * ~speech language pathologist" Chicago, IL

Is there a way to tighten it up to return only people currently working at a school district?  

Most people at schools generally list their employer as:  XYZ Public Schools" "XYZ School District", "XYZ Independent School District" or "XYZ ISD"

Thanks so much in advance.  I look forward to learning from this group!!