title: grepl to search strings containing more than 2 paterns than includes parenthesis in R
body: <p>Good afternoon,
  I want to search for a string that contains two times the pattern &quot;1)2&quot;</p>
  <p>I tried:
  grepl('(1.+\).+2){2}', variable, fixed=TRUE)</p>
  <p>Thank you very much in advance¡¡¡¡</p>