using System;

using System.Linq;

using System.Collections.Generic;

using System.Text.RegularExpressions;

public class Program

{

    static Regex pattern = new Regex(@"(""|('))", RegexOptions.IgnoreCase);

    public static void Main()

    {   

        var fiuza =  "\"Fiu\"z'a\"";

        var list = new List<string>(2);

        list.AddRange( new[]{"a", "b", "Fiuza"});

        Console.WriteLine(list.Count);

        for(var i = 1; i <= 5; i++)

        {

            list.Add(i.ToString());

        }

        Console.WriteLine(list.Count);

        var name = list.FirstOrDefault(x => Replace(x).Contains(Replace(fiuza)));

        Console.WriteLine(name ?? "Não achou");

    }

    public static string Replace(string value)

    {

        return pattern.Replace(value, "");

    }

}