Multi_query PHP MySQLi

function search_admin($q) {
    $db = load_db();
    $sql = "SELECT keyword FROM keyword WHERE keyword LIKE = '%{$q}%'";
    $sql .= " SELECT title, status
              FROM title
              WHERE CONCAT(title, ' ', status)
              LIKE '%{$q}%'";
    $sql .= " SELECT first_name, middle_name, last_name, cbemail
              FROM employees
              WHERE CONCAT(first_name, ' ' , middle_name, ' ' , last_name , ' ' , cbemail)
              LIKE '%{$q}%'";
    $sql .= " SELECT username FROM users WHERE username LIKE = '%{$q}%'";

    $result = $db->multi_query($sql);

// missing code

}

I can't seem to understand the explanation in the php manual. I hope you can englighten me more. This is for a search bar, that if example he will search for "pending". The code will search on 3 tables which is the title, employees and users. Then output the results. Now my problem is what to do after i get the result query :/