title: Get all The index of Any Word in the String
body: <p>I have one String , Which contain Word    more Than one time ..
  I want to find Each occurrence of that word one by one  and need To add some other word after That ..</p>
  
  <p>Example - </p>
  
  <pre><code>&lt;start&gt;
  &lt;child1&gt;
  .
  .
  .
  &lt;start&gt;
  &lt;child2&gt;
  ..
  </code></pre>
  
  <p>and So On ..</p>
  
  <p>i tried .  </p>
  
  <pre><code>int count = Regex.Matches(StrRemoveWrongData, @"&lt;start&gt;").Count;
  </code></pre>
  
  <p>its giving me count , there is any thing where we can go to every occurrence one by one .
  and add new word below that ..</p>