Just happened: vừa / mới / vừa mới

Vừa, mới and vừa mới before a verb say something has just happened: Anh vừa gọi cho em. I just called you. Em mới ăn rồi. I've just eaten. Vừa mới is the two together, with a little extra stress. Mới is very common in everyday Saigon speech, and rồi is often added at the end.

Mới can also mean "only recently", even weeks ago, especially with a length of time: Tôi mới tới Sài Gòn được hai tháng. I only came to Saigon two months ago.

Don't add đã: vừa and mới already say it happened a moment ago.

Mới has two other uses, and its place tells them apart. After a noun it means "new": xe mới, a new motorbike. After a time word it often means "not until", later than expected: Mười giờ chị Lan mới tới. Chị Lan didn't come until ten. With a recent past time it can still mean "just": Hôm qua em mới gặp anh ấy. I just saw him yesterday. The situation tells you which.

English "just" can also mean "only". For that, Vietnamese uses chỉ: chỉ một cái, just one.