How to get current request url in Sharepoint 2013?

How to get current request url

I type in browser:

https://srv-1/sites/1001/Account Documents/Order

but in Page_Load in my controls I get

HttpContext.Current.Request.Url = https://srv-1/_layouts/15/start.aspx

and

Page.Request.RawUrl = Page.Request.RawUrl

I need to retrieve information: /Account Documents/Order

I found this:

SPUtility.GetFullUrl(SPContext.Current.Site, SPUtility.OriginalServerRelativeRequestUrl);

It still return only "srv-1/sites/1001/_layouts/15/start.aspx"; and I need also this: "/Account Documents/Order"

How I can retrieve it?

Thanks