XML To LINQ Start The Search From Root?

So far I don't got problems searching elements for example , the next block of code will load the xml file and then will search descendants ("recordinfomation") which is a parent element in the XML file and returns child elements ("title", "aut_FirstName, "aut_LastName, and "xmllink") . My question is I would like to start my search at the root of the xml file and search all parent elements and not a specific one and return what I am returning in the following code. In another words search the whole document for specific child elements.

Dim XDoc As XElement = XElement.Load(MapPath("App_DataBookstore.xml"))
Dim elements = From row In XDoc.Descendants("recordinformtion") _
Where Regex.IsMatch(row.Element("title").Value, strfirstterm,

[Code].....