Cant translate everything in Loco translate

Hi. Great plugin. I have a question. The plugin is translated to czech language, but not everything is translated. I installed Loco translate, but I cant find some texts that are not translated to czech language. For example some texts or links in confirmation emails (like “confirm booking” or “manage booking” etc.) I noticed I can change some of the email texts in email settings, but not all of them. Also some texts that are I see in czech translation appears to be in english on website or in emails. How can I translate these texts? Thank you!