Webscrape a webpage that's url same but location changes in search box in c#

Question

I have to scrape a webpage in c# and i am using Httpclient,My problem is that when i scrape a url e.g https://somethng.com/search/?query=mobile,its give me result no products found ,but when i search manually in website and give a location in search text box in webpage e.g: some city ,it shows products on page but url is same as i wanna scrape in my application https://somethng.com/search/?query=mobile,there is no location querystring in url. My question is how to handle it in webscraping? because url shows no pruducts in my app but shows products when i search manually and both urls are same.