Urgent!! how to make a search filters in a box in the home page

samides,

1- For adding search box on home page, please visit the following link. We have already answered your query.
https://wordpress.org/support/topic/search-on-front-page?replies=5#post-8773734

2- For adding “Read More” button, please add the following code snippet in your theme functions.php file.

/**
 * Filter the "read more" excerpt string link to the post.
 *
 * @param string $more "Read more" excerpt string.
 * @return string (Maybe) modified "read more" excerpt string.
 */
function wpdocs_excerpt_more( $more ) {
    return sprintf( '<a class="read-more btn btn-primary" href="%1$s">%2$s</a>',
        get_permalink( get_the_ID() ),
        __( 'Read More', 'textdomain' )
    );
}
add_filter( 'excerpt_more', 'wpdocs_excerpt_more' );

Hope it will help you. Thank you for using SJB and let us know if we can help you further.

Thank & Regards,
PressTigers