using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var value = "a ack fghjy fghfh asn 98501 xbancd23das";

​

        string result = String.Join

        (

            " ", 

            value.Split().Select

            (

                w => new string

                (

                    w.OrderBy(ch => ch).ToArray()

                )

            ).OrderBy(w => w)

        );

        Console.WriteLine(result);

    }

}