There are two ways: formal and informal.
Regular: contact the employment office of the school and tell us about your company's information, recruitment requirements and teachers in the employment class. The specific form may need to be filled in, but the school must look at the qualification certificate of your company or something (it should not be very strict, just prove that you are not a liar company)
Informal: Generally, colleges and universities have student information areas. You can post some recruitment information in these places, and you should ask the students in the school.