喜欢两个表之间的mysql

I have two tables. One is the users table

id - name - skills

and the other is the jobs table

job_id - job-title - job_description

I tried this query, so when selecting any word in skills in first table get job titles. Like this:

   SELECT *FROM users INNER JOIN jobs ON users.site_keywords || '%' + jobs.job_description + '%'"

But it didn't work.

Any help for that?
Thank you

For string macthing you should use LIKE and for string concatenation use agnostic CONCAT

"SELECT * 
 FROM users 
 INNER JOIN jobs ON users.site_keywords  LIKE  concat('%' ,jobs.job_title , '%') "