It's an expansion alright. UPD: Added word examples - press W repeatedly until "Go to word examples..." displays. Also added some clarifications.
Original set by @trey9527 Style by me, @NickTheScratchCat1 Changes: Added characters Ă, Â, Đ, Ê, Ô, Ơ, Ư, and the tone marks, and "demoted" characters F, J, W, Z to ghosts, becuz they're the unused letters (https://en.wikipedia.org/wiki/Vietnamese_alphabet#:~:text=Vietnamese%20unused%20letters).