How to include search queries into your Craft searches

search.twig

{% set activeQuery = craft.app.request.getParam('q')|default('') %}

{% set searchResults = activeQuery ?
        craft.products({
            search: {
                query: activeQuery,
                subRight: true,
            },
            order: 'score',
    })|merge(
        craft.entries({
            search: {
                query: activeQuery,
                subRight: true,
            },
            order: 'score',
        })
    )|multisort(
        ['searchScore'],
        [SORT_DESC]
    ) %}
    
{% if searchResults is not empty %}
    {{ searchResults|length }} result{{ searchResults|length > 1 ? 's were' : ' was' }} found for "{{ activeQuery }}"
{% endif %}

{% if activeQuery and searchResults is empty %}
    No results found for "{{ activeQuery }}".<br/>
    Try adjusting your keywords and try again.
{% endif %}