Übersetzung - Türkisch-Englisch - ölümsüz aÅŸklar varda ölmeyen aşık var mı

....but are there immortal lovers whose dosen't die?

immortal already means "who doesn't die".
"whose" is used instead of "of one" , i guess you meant "who".
and you must be meaning "doesn't" by "dosen't" ...