Help with Indeed API

Hi everyone, I’m trying to make a page within my WordPress blog to display Indeed jobs to my visitors. The problem is that Indeed’s documentation is too complicated to comprehend. Well, for me that is.

I want to be able to display jobs like in this site: https://phlebotomytraininggroup.com/phlebotomy-jobs/

And here’s Indeed’s Job Search Box:
https://www.indeed.com/jsp/htmlbox.jsp#opt2

The basic problem I’m having is that I can’t predefine the search. I want for the Job Search Box to search for nursing jobs in the United States as a default and display the results within my custom page.

If anyone has previous experience implementing Indeed job search to their WP site, please help. I would be grateful.