update a section of a view - php

Question

I have a problem updating a section of a laravel view. that section is in another view and is filled with the data of a db. What I want to do is that when clicking on a link that content is filtered and the other parts of the page remain as they were.
thanks
coursesCategories.blade.php
#extends('courses')
#section('content')
#extends('courses')
#section('content')
<div class="tab-pane fade show active" id="pills-todas" role="tabpanel" aria-labelledby="pills-todas-tab">
<div class="row justify-content-sm-center">
#foreach($cursos as $curso)
<div class="col col-12 col-sm-12 col-md-6 col-lg-4 vista_curso">
<div class="card column_course">
<a><img class="card-img-top img_course" src="{{ asset('assets/images/pictureDefault.png') }}" alt="Foto de curso" width="240" height="135"></a>
<div class="card-body column_course_interna">
<div class="include">
<div class="card-title titulo_curso">
<h3><b>{{ $curso->nombre }}</b></h3>
</div>
<ul>
<li>
<i class="fas fa-file col-1"></i>
<span class="lista_contenido col-11"> 4 documentos explicativos </span>
</li>
<li>
<i class="fas fa-clock col-1"></i>
<span class="lista_contenido col-11"> 32 minutos </span>
</li>
</ul>
</div>
<div class="compra">
<div><button type="button" class="btn btn-lg btn_suscribe btn_ver" style="width: 84%;">Ver Curso</button></div>
<div><button type="button" class="btn btn-lg btn_suscribe" style="width: 84%;">Suscribirse</button></div>
</div>
<div class="texto_precio">
<span class="price">20.99€</span>
</div>
</div>
</div>
</div>
#endforeach
</div>
</div>
#stop#stop
courses.blade.php
<div id="mostrar_cursos" class="container-fluid justify-content-center mostrar_cursos">
<div class="btn_filtros"> <button id="btn_filtros" type="button" class="btn btn-primary btn-sm btn-block d-md-none" onclick="viewfilter();ocult()">Filtrar</button></div>
<div class="row">
<div class="d-none d-md-block col col-md-4 col-lg-3 filter" style="max-width: 304px">
<div class="nav flex-column nav-pills" id="pills-tab" role="tablist" aria-orientation="vertical">
<a class="nav-link active" id="pills-todas-tab" href="{{ action('CoursesController#showList') }}" role="tab" aria-controls="pills-todas" aria-selected="true">Todas</a>
#foreach($categorias as $categoria)
<a class="nav-link" id="pills-ofimatica-tab" href="{{ action('CoursesController#showCourses', $categoria->nombre) }}" role="tab" aria-controls="pills-".$categoria aria-selected="false">{{ $categoria->nombre }}</a>
#endforeach
</div>
<div class="rango_precio">
<form>
<label for="customRange">Rango de precio</label>
<input type="range" class="custom-range" id="customRange">
</form>
<div id="result">Valor menor que:
<b id="valor"></b>
<strong>€</strong>
</div>
</div>
<div class="order_by">
<button id="btn_ordenar" class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenu2" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Ordenar por precio
</button>
<div class="dropdown-menu" aria-labelledby="dropdownMenu2">
<button class="dropdown-item" type="button">Precio más alto</button>
<button class="dropdown-item" type="button">Precio más bajo</button>
</div>
</div>
</div>
<div class="col col-md-8 col-lg-9 row">
<div class="navegador_category container">
<div class="tab-content" id="pills-tabContent">
#yield('content')
</div>
</div>
</div>
</div>
</div>
coursesController
class CoursesController extends Controller
{
// list all categories and courses
public function showList() {
// categories extracted from the bd
$categorias = \App\Categoria::listaTodasLasCategorias();
// filtering courses according to html
$cursos = \App\Curso::listaTodosLosCursos();
return view('courses.coursesCategories',['cursos' => $cursos, 'categorias' => $categorias]);
}
// list all categories and courses
public function showCourses(Request $request, String $category) {
// categories extracted from the bd
$categorias = \App\Categoria::listaTodasLasCategorias();
// filtering courses according to html
$cursos = \App\Curso::listarCursosPorCategoria($category);
$view = View::make('courses.coursesCategories', ['cursos' => $cursos]);
if(Request::ajax()) {
$sections = $view->renderSections(); // returns an associative array of 'content', 'head' and 'footer'
return $sections['content']; // this will only return whats in the content section
}
return $view;
}
}
routes
Route::get('/courses', 'CoursesController#showList');
Route::get('/courses/{category}', 'CoursesController#showCourses');