Say you have an XML file that looks like this:

<KW>
<Subjects SubjectID="00100" SubjectDescription="ABORTION"/>
<Subjects SubjectID="00010" SubjectDescription="ABUSE * ADULT *
INVESTIGATION"/>
<Subjects SubjectID="06450" SubjectDescription="ABUSE * CHILD ABUSE *
COUNSELING"/>
</KW>

I'm trying to configure the XPath property of a C# XMLDataSource
object so that I can grab the rows in this XML file for which the
SubjectDescription contains a given search criteria. For example, if
the criteria were "ABUSE", the last two rows of the XML would be
returned as a result set.

What exact XPath syntax would perform this query?