I get null value for htmlnode while using htmlagilitypack even though it has a value in the webpage.

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C#

I want to scrape price value out of the nse reliance website. I use htmlagilitypack. Unfortunately I am getting null value for HtmlNode even though value is present in the webpage.

What I have tried:

namespace stockmarket_data
{ 
using HtmlAgilityPack;
    using System;
    using System.Linq;

    internal class Program
{
        static void Main(string[] args)
        {
            string url = "https://www.google.com/search?q=nse+reliance&oq=nse+reliance&gs_lcrp=EgZjaHJvbWUyBggAEEUYOdIBCTc2NzRqMGoxNagCALACAA&sourceid=chrome&ie=UTF-8";

            var web = new HtmlWeb();
            var doc = web.Load(url);
            try
            {
                HtmlNode priceElements = doc.DocumentNode.SelectSingleNode("//span[@class='knowledge-finance-wholepage-chart__hover-card-value']");

                if (priceElements != null)
                {
                    Console.WriteLine(priceElements.InnerHtml.ToString());
                }
            }
            catch (Exception ex)
            {
                    
                    Console.WriteLine(ex.Message.ToString());

            }
           
    }               
    }
}