Detected on using crowdin integration.
Where to find missing translatable sentences:

Go to "Content -> Users / Content Structure -> Details tab -> Sub-items default ordering":
Sub-items default ordering "Location path"(dropdown) in "ascending"(dropdown)
the "in" sentence in between dropdowns is non-translatable.

Go to "Content -> Users / Content Structure -> Locations tab", "Location Content Swap" is non-translatable.

Go to "Content -> Users / Content Structure -> Locations tab -> Content locations":
Remove selected (dropdown) or "Add Location" (dropdown)
the "or" in between the dropdowns is non-translatable.

Go to Universal Discovery Widget / Finder:
the "Browse" and "Create" tab headers are non-translatable.

Go to "Administration Panel" -> Sections -> Create new section":
the field labels ("Name" and "Identifier") are non-translatable.

Go to "Administration Panel -> Roles -> enter some role -> edit some policy":
the Limitation type labels are non-translatable:
"Class", "Group", "Node", Owner", etc.

Go to "Content -> Content Structure -> Search":
the "Search" header on top is non-translatable.