title: Regex: Count matches from list of words
body: <p>I'm trying to get the right syntax for getting the number of matches from list of words
  example: </p>
  
  <p>List: (US,UK,Greece,Germany,Nigeria,Brazil)</p>
  
  <p>The text is: "Cake returns put Brazil Welcome Stack to between paragraphs Argentina Overflow UK"</p>
  
  <p>I would like to know how many words from the list above appear in this text with a regex pattern.
  Alternative, I would like to know if there more than 1 match from the list in the text</p>
  
  <p>Is it possible to do that with Regex?</p>