proverbial needle in a haystack

Translations
пресловутая иголка в стоге сена
Finding my keys in this mess is like looking for the proverbial needle in a haystack.
Найти мои ключи в этом беспорядке — это как искать пресловутую иголку в стоге сена.
Definitions
A proverbial needle in a haystack refers to something that is extremely difficult or nearly impossible to find due to its small size or the vastness of the surrounding area, often used to describe a search for something that is hidden among many other things.
Words
proverbial

adjective
пресловутый
needle

noun
иголка
in

preposition
в
a

article or possessive pronoun
один
haystack

noun
стог сена