Profile: nicoleL

Problem:
Replace the dash character with space in text outputted from other shortcode, for example:

wpv-search-term

Solution:
I suggest you try to create another shortcode to achieve what you want, for example,
1) add below codes into your theme/functions.php:

add_shortcode('dash2space', 'dash2space_func');
function dash2space_func($atts, $content){
    $content = do_shortcode($content);
    $content = str_replace('-', ' ', $content);
    return $content;
}

2) Use above shortcode [dash2space], like this:

[dash2space] ...wpv-search-term param="type"... [/dash2space]

Relevant Documentation:
http://php.net/manual/en/function.str-replace.php
https://codex.wordpress.org/Function_Reference/add_shortcode