nhưng mà

but

Typed without accents: nhung ma

Meaning

Highlighted words are what Saigon and Hà Nội say differently.

but
conjunction

Means nhưng, softer and very common in speech. It can open a reply on its own.
- Saigon
  Em thích lắm, nhưng mà mắc quá.
  
  Hà Nội
  Em thích lắm, nhưng mà đắt quá.
  
  I love it, but it's too expensive.
- Nhưng mà em chưa ăn.
  But I haven't eaten yet.
Grammar: But: nhưng