Hello
All default woocommerce plugin strings for files can be found in wp-content/plugins/woocomerce/i18n/languages/****.pot file. You may use POEDIT text editor for translation and use right click on the words you mentioned. The same way you may use for theme default strings. Please open wp-content/themes/woopress/languges/***.po file and check any word you cannot edit using wordpres backend panel.
With best regards
Brian Johnson