Get KEY WORDs of user input

Question

Hello all, 

I'm learning C#, so this question may seem idiot. 

I'm wondering if there is any function like:  (assume textBox1.Text = "What is your name?")

   if (textBox1.Text has these words : "What", "name")

      {

           MessageBox.Show("My name is ....");

      } 

 

Thanks for anyone who reads this!

I very appreciate if you know the way and share it with me. You can just give me the idea

Thanks, agian! :)