Hi Arinbjørn,
Thanks for reaching out to us!
We rely on community members (like yourself) for translations, so not all languages are 100% translated. I’m afraid it’s possible that the strings you mention are not translated to Norwegian yet.
Please re-download the mo and po files for the Norwegian translation to get the latest version for your language. From the site you can also contribute by translating missing strings, they will be approved and added to the translation.
Check out this article: Adding or updating a translation, for details on how translation submission process works.
Please let me know how this goes,
Best,
Nico