code: public static int searchIgnoreCase(String str, String keyw) {
          return search(str.toLowerCase(), keyw.toLowerCase());
      }
docs: Returns the number of times the specified string was found
  in the target string, or 0 if there is no specified string.
  When searching for the specified string, it is not case-sensitive.
  
  @param str the target string
  @param keyw the string to find
  @return the number of times the specified string was found