mvc HTTP 404 error

Good,

I created an ASP: NET WEB Core 2.0 Appl.
I created views and controllers.
When I make a submit via:

<form asp-controller="Audit" asp-action="Search" method="post"> 

Instead of opening via (controller Audit, IAction, search, return View ()) the Audit / view page at

http://localhost:62857/Home/Audit

tries to open (with error)

http://localhost:62857/Audit/Search .

The same goes for other views.

What am I doing wrong?

NOTA1 : I do not have enough experience (yet) to use routes and maps.
NOTE2 : If I use eturn Content ("AOC") I will see the AOC.

'Audit.cshtml' form asp-controller="Audit" asp-action="Search" method="post" > div class="row"> input type="search" id="inputSearch" name="inputSearch"> input type="Submit" value="Search ..." > / div > / form

AuditController Public IActionResult Search (string inputSearch)         {             ViewBag.Search = inputSearch;

        // return View("Index");
        // return View();
        // return Content("test audit");
        return View("~/Views/Home/Audit");
    }

Thanks for the attention