Extract Tags from XML using org.w3c.dom

I have an xml that looks something like the below. I am using Java. I have parsed it. (There can be an infinite number of <Result> tags as well as an infinite number of <Return> tags.)

<TestXML>
    <FirstStuff>blah</FirstStuff>
    <MoreStuff>blah blah</MoreStuff>
    <Result>1234</Result>
    <Result>5678</Result>
    <Return>
         <Comment>This one worked</Comment>
         <Pool>1234</Pool>
    </Return>
    <Return>
         <Comment>This one worked better</Comment>
         <Pool>5678</Pool>
    </Return>
</TestXML>

This is a piece of code that I have used:
     final Document document = xmlObject.getXmlAsDocument();
     final NodeList nodeList = document.getElementsByTagName("Result");
     final Vector results = new Vector();
     for (int i = 0; i < nodeList.getLength(); i++) {
          final Node node = nodeList.item(i);
          final String nodeName = node.getNodeName();
          final Node nodeValue =  node.getChildNodes().item(0);
          results.add(nodeValue.getNodeValue());
     }

This works fine. But now I don't need to get the results tag anymore, but the two tags inside the Return tag. And I need to associate the comment with the pool, so I need to get them together so I can put them in some object before adding them to the Vector. I am very unfamiliar with how this work and am struggling to read the tags inside the Results tag. I tried the getChildren and getSibling thing...but I don't think I am using it in the right way. Can someone help me ??