Add Multiple Term Search to my current query
<p>I have a basic search engine. In one script, it populates a MYSQL table with words scanned in the html web page. Based on one word search, it ranks the results when the words appeared the most in the web page. </p>

<p>But I need to work on multiple term querying. Is there a way to search multiple terms from my query below?</p>

<pre><code>     $keyword = addslashes( $_POST['keyword'] );
     $results = addslashes( $_POST['results'] );

      /* Execute the query that performs the actual search in the DB: */

         $result = mysql_query(" SELECT p.page_url AS url,
                       COUNT(*) AS occurrences 
                       FROM page p, word w, occurrence o
                       WHERE p.page_id = o.page_id AND
                       w.word_id = o.word_id AND
                       w.word_word = \"$keyword\"
                       GROUP BY p.page_id
                       ORDER BY occurrences DESC
                       LIMIT $results" );
</code></pre>
