SharePoint 2013 - Hide Quick-launch and Title Row Single Page

Here is the code :

<asp:Content ContentPlaceHolderID="PlaceHolderMain" runat="server">

    <style type="text/css">

        #s4-titlerow {

            display: none !important;

        }

        .ms-core-navigation {

            DISPLAY: none;

        }

        #contentBox {

            margin-left: 0px;

        }

        ms-dialog #titlerow {

            min-width: 0; /*as opposed to e.g. a setting of min-width of 800px*/

        }

    </style>

</asp:Content>

One more link here
http://www.eliostruyf.com/display-the-title-row-top-navigation-in-the-search-centers-of-sharepoint-2013/