No translation for tab view and column header

we are working on a translation of our project; we used the translation manager and that worked translating all the terms in labels, buttons and menù.

Unfortunately, the translation seem to not work on tab names (view tab) and on column header.
We have to workaround the function or are we missing something in configuration?
Thanks for yours replies, i add an image for make it more clear (highlightning the terms not translated)