You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <search>
      <p ns="0" title="Free Culture Forum Charter" snippet="...and Portuguese, and &amp;quot;libero&amp;quot; in Italian. Free Knowledge has thus the same &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; as Libre Knowledge, Free Software as Libre Software, free licenses as libre&#10;Learning is a life long process of social construction of &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt;. We learn together by sharing knowledge, experience and cultural nuances. A&#10;" size="92549" wordcount="13285" timestamp="2014-10-13T13:28:59Z" />
    </search>
  </query>
</api>