If it's :
Could it be (each letter shifted to a neighbor key)?
So Atbash gives: "gsnbo dby yid 9" — not obviously meaningful. thmyl wyb brw 9
So "guzly jlo oej 9" — also not clear.
thmyl → guzly wyb → jlo brw → oej
Second word wyb → dby
Could you clarify what you mean by this? If it's : Could it be (each letter
Third word brw → yid
It looks like you've provided a string:
"thmyl wyb brw 9"
Last 9 stays 9 .