Ale

function validar(nose, search) {
    let aux = nose.product.filter(x => {
        if(x.industrias.indexOf(search) >= 0 || x.udenegocios.indexOf(search) >= 0)
            return x;
    });
    return aux.length !== 0;
}
search = 5;
json.child_categories.filter(x => {
    if (validar(x, search))
        return x;
})