</tr>
<tr>
<td><code>PNG;Chart</code></td>
- <td> Search for topics containing the words <strong>PNG</strong> <em>and</em> <strong>Chart</strong>. This is not a regular expression! But a useful facility that is enabled when regular expression searching is enabled. </td>
+ <td> Search for topics containing the words <strong>PNG</strong> <em>and</em> <strong>Chart</strong>. The <code>";"</code> <em>and</em> separator is TWiki-specific and is not a regular expression; it is a useful facility that is enabled when regular expression searching is enabled. </td>
</tr>
</table>