How to return a subset of XElements inside parent XElement

If I have xml such as the following:

<ValidationResults>
  <ValidationResult>     
    <Scheme>Scheme A</Scheme>
  </ValidationResult>
  <ValidationResult>  
    <Scheme>Scheme B</Scheme>
  </ValidationResult>   

I want to query it using Linq to Xml so that I return:

<ValidationResults>
  <ValidationResult>     
    <Scheme>Scheme A</Scheme>
  </ValidationResult>     
</ValidationResults>

If I do something like this:

....Element("ValidationResults").Elements("ValidaitonResult")
                                .Where(x => x.Element("Scheme").Value == "Scheme A");

I return only:

 <ValidationResult>     
    <Scheme>Scheme A</Scheme>
 </ValidationResult>  

Then I am currently creating the parent again and adding the children to it, which does not seem correct:

var parentElement = new XElement("ValidationResults");
var childElements = //get as above

parentElement.Add(childElements);

How do I return a queried subset of elements inside it's original parent?