other LEO users may offer better suggestions. Translation into English sounds good.
Just might reduce the number of occurrences of the word "article(s)" and replace expiry with expiration date plus a few other minor suggestions.
Leave it as-is if you mean something like a news article or something lengthy online post on a blogging web site.
"In / on / under (if this is an online "tab" - IMHO, ON might be the better choice) the “article” tab you’ll find the
articles items / entries? that could not be automatically deleted past / after its expiry expiration date."
"On the “article” tab you’ll find (the = optional here depending upon other context) tems? / entries? that could not be automatically deleted after its expiration date."
If this were to instruct a user how to find their undeleted items / entries / articles, use THE.
If to instruct any and all users how to retrieve undeleted articles, omit it (THE). Try reading the sentence with and without it and see which sounds better to you. You already know the context, so that should help.
slight correct to suggestion in #1, labelled ==> labeled (only 2 L's - not 3).