Index: head/share/xml/header.ent
===================================================================
--- head/share/xml/header.ent
+++ head/share/xml/header.ent
@@ -65,7 +65,7 @@
 <!ENTITY header2.searchbox '
   <div id="search" xmlns="http://www.w3.org/1999/xhtml">
     <form method="get" id="search-form" action="https://duckduckgo.com/"
-      onsubmit="document.getElementById(&#39;words&#39;).value+=&#39; site: www.FreeBSD.org site: docs.FreeBSD.org site: lists.FreeBSD.org site: wiki.FreeBSD.org site: forums.FreeBSD.org&#39;">
+      onsubmit="document.getElementById(&#39;words&#39;).value+=&#39; (site:www.FreeBSD.org OR site:docs.FreeBSD.org OR site:lists.FreeBSD.org OR site:wiki.FreeBSD.org OR site:forums.FreeBSD.org)&#39;">
       <h2 class="blockhide"><label for="words">&header2.word.search;</label></h2>
       <input type="hidden" name="ka" value="v" />
       <input type="hidden" name="kt" value="v" />