.Net AND operator Regular Expression using strings in a document

(?>.*foo.*bar)|(?>.*bar.*foo) 

        string text = @"blah blah bar foo bar";
        string pattern = @"(?>.*foo.*bar)|(?>.*bar.*foo)";
        Match match = new Regex(pattern, RegexOptions.Singleline).Match(text);
        if (match.Success)
        {
            // do something
        }

((?<CCNum>4\d{3}[ -]?(\d{4}[ -]?){2}\d{4}).*Bar)|(.*Bar.*(?<CCNum>4\d{3}[ -]?(\d{4}[ -]?){2}\d{4}))

        string text = @"Bar 4111-1111 1111 1111";
        string pattern = @"((?<CCNum>4\d{3}[ -]?(\d{4}[ -]?){2}\d{4}).*Bar)|(.*Bar.*(?<CCNum>4\d{3}[ -]?(\d{4}[ -]?){2}\d{4}))";
        long CCNum;
        Match match = new Regex(pattern, RegexOptions.Singleline).Match(text);
        if (match.Success)
        {
            if (Int64.TryParse (match.Groups["CCNum"].Value.Replace(" ", "").Replace("-",""),out CCNum));
            {
                // here is your clean CC Number
            }


        }