Hello,
It looks like you provided a wrong screenshot.
As I can see, your changes work here – http://prntscr.com/10yygg2 and http://prntscr.com/10yyhg7 Clear cache and check. About this link – http://prntscr.com/10yyllu , you did not change it in xstore-child/woocommerce/cart/cart.php.
About the link here – http://prntscr.com/10yyole , re-write etheme_get_mini_cart_empty function (xstore/framework/woo.php file) via functions.php file of the child theme.
Regards