Hello @miki,
We suggest that you go to Loco >> themes >> xstore and edit the particular translation language and then click on the SYNC button. After that, you can search for and translate the words as needed.
If you are still having issues, please provide screenshots of the issue having marked those words and your WordPress Admin URL and credentials in the private contact area of this topic. This will allow us to further investigate the issue and provide assistance.
Thank you for your cooperation.
Best Regards,
8Theme’s Team