newsupernova/vendor/magento/module-elasticsearch/etc/esconfig.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Elasticsearch:etc/esconfig.xsd">
    <stemmer>
        <type>stemmer</type>
        <default>english</default>
        <de_DE>german</de_DE>
        <en_US>english</en_US>
        <es_ES>spanish</es_ES>
        <fr_FR>french</fr_FR>
        <nl_NL>dutch</nl_NL>
        <pt_BR>portuguese</pt_BR>
    </stemmer>
    <stopwords_file>
        <default>stopwords.csv</default>
        <de_DE>stopwords_de_DE.csv</de_DE>
        <en_US>stopwords_en_US.csv</en_US>
        <es_ES>stopwords_es_ES.csv</es_ES>
        <fr_FR>stopwords_fr_FR.csv</fr_FR>
        <nl_NL>stopwords_nl_NL.csv</nl_NL>
        <pt_BR>stopwords_pt_BR.csv</pt_BR>
    </stopwords_file>
</config>