First attempt at MySQL Table JOIN

[Rodney_H_]

This is what I currently have:

<?php
$sql = "SELECT links.*
            FROM keywords_table, keywords_to_links, links
            WHERE (keyword LIKE '%wheel%')
            AND keyword_id_ref = keyword_id
            AND link_id_ref = link_id";

?>

But I need to change the WHERE clause to include another word, 'truck'. But, when I do the following it just hangs up:

<?php
$sql = "SELECT links.*
            FROM keywords_table, keywords_to_links, links
            WHERE (keyword LIKE '%wheel%')
            ||  (keyword LIKE '%truck%')
            AND keyword_id_ref = keyword_id
            AND link_id_ref = link_id";

?>

Any suggestions?