This plugin should work with any WooCommerce version installation, since it hooks up to the core functionality of WooCommerce. The search functionality in woocommerce admin order listing page doesn’t search by sku by default.
This simple plugin will extends the search functionality in woocommerce admin order listing page. Just install and activate from admin panel – no any settings required.
Tested with Woocommerce 2.0.18, 2.2.4 and 2.2.10