I translated language from plugin language files but there is some words what I can’t find. e.g “like”, “type comment”, “comment” and etc. I looked also from my theme files and everything is translated already.
These words are available for translation. Please check rtMedia translation project -> https://rtcamp.com/translate/projects/rtmedia for that.
There is no my language (Finnish).
I had just created one. Please check this link -> https://rtcamp.com/translate/projects/rtmedia/fi/default
Please check this doc -> https://rtcamp.com/rtmedia/docs/common/translations/ for how to submit your translations.