title: advance C# string comparison
body: <p>Is there any class (function)  in .Net that can do this:</p>
  
  <p>if 
  <code>s1 = " I have a black car"  and  s2 = "I have a car that is small";<br>
    int matchingProcentage = matchingFunction(s1,s2);</code> </p>
  
  <pre><code>  matchingProcentage == 70% &lt;-- just as an example value :)
  </code></pre>