If you intended to ask for a summary or analysis of a known Arabic book titled something like Tamanna al-Libi or a similar phrase, please clarify. Alternatively, if this is a request to generate a fictional or poetic passage based on those words, I can do that.
To give you a as requested, I would need the correct original text or a clearer indication of what language, script, and content you mean. thmyl ktab tamna allyby
However, this is speculative.
If we try to interpret it as a rough Arabic transliteration: "thmyl" could be ( tahmīl = downloading) "ktab" could be كتاب ( kitāb = book) "tamna" could be تمنى ( tamannā = wished for / desired) "allyby" could be اللبي ( al-lubbī = possibly "my heart" if intended as "قلبي" qalbī , but with "ل" instead of "ق") or it could be a name (Al-Libi = the Libyan). If you intended to ask for a summary
So a guessed meaning: — or — "Download the book my heart desired." However, this is speculative