Hi @konstantin_frolkov,
Those links are defined by layout by the Sales module.
You'll find the definition here:
/vendor/magento/module-sales/view/frontend/layout/default.xml
Of cours,e you should override the block, no that file.
Here's the content of the layout:
<?xml version="1.0"?>
<!--
/**
* Copyright © 2013-2017 Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
-->
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceBlock name="head.components">
<block class="Magento\Framework\View\Element\Js\Components" name="sales_page_head_components" template="Magento_Sales::js/components.phtml"/>
</referenceBlock>
<referenceContainer name="sidebar.additional">
<block class="Magento\Sales\Block\Reorder\Sidebar" name="sale.reorder.sidebar" as="reorder" template="reorder/sidebar.phtml"/>
</referenceContainer>
<referenceBlock name="footer_links">
<block class="Magento\Sales\Block\Guest\Link" name="sales-guest-form-link">
<arguments>
<argument name="label" xsi:type="string">Orders and Returns</argument>
<argument name="path" xsi:type="string">sales/guest/form</argument>
</arguments>
</block>
</referenceBlock>
</body>
</page>
