如何在XML中搜索给定的字符串？

I have a XML like:

我有一个XML:

<bodyText>
  <1 beginIndex="0" endIndex="723">
    The teddy bear is a soft toy in the form of a bear. Teddy bears are among the most popular gifts for children and are often given to adults to signify love, congratulations or sympathy.</1>

<2 beginIndex="724" endIndex="347">
    Morris Michtom saw the drawing of Roosevelt and was inspired to create a new toy. He created a little stuffed bear cub and put it in his shop window with a sign that read "Teddy's bear," after sending a bear to Roosevelt and receiving permission to use his name. 
</2>
</bodyText>
<bodyText>
  <1