WooCommerce: products search form using a custom template file

gistfile1.php

<?php

$form = '<form role="search" method="get" id="searchform" action="' . esc_url( home_url( '/'  ) ) . '">
	<div>
		<label class="screen-reader-text" for="s">' . __( 'Search for:', 'woocommerce' ) . '</label>
		<input type="text" value="' . get_search_query() . '" name="s" id="s" placeholder="' . __( 'My Super Search form', 'woocommerce' ) . '" />
		<input type="submit" id="searchsubmit" value="'. esc_attr__( 'Search', 'woocommerce' ) .'" />
		<input type="hidden" name="post_type" value="product" />
	</div>
</form>';

echo $form;

I want to add 2 text field on product search form. Use he following code, where second text field name will be define and use AND condition.

<input type="search" class="search-field" placeholder="<?php echo esc_attr_x( 'Search Location&hellip;', 'placeholder', 'woocommerce' ); ?>" value="<?php echo get_search_query(); ?>" name="s" title="<?php echo esc_attr_x( 'Search for:', 'label', 'woocommerce' ); ?>" />

<input type="search" class="search-field" placeholder="<?php echo esc_attr_x( 'Search Date&hellip;', 'placeholder', 'woocommerce' ); ?>" value="<?php echo get_search_query(); ?>" name="s1" title="<?php echo esc_attr_x( 'Search for:', 'label', 'woocommerce' ); ?>" />

<input type="submit" value="<?php echo esc_attr_x( 'Search', 'submit button', 'woocommerce' ); ?>" />
<input type="hidden" name="post_type" value="product" />