How do you say “pen name” in Vietnamese?

Vietnamese words for “pen name”

• bút danhListennoun
  Hanoi [ʔɓut̚˧˦ zajŋ̟˧˧] · Saigon [ʔɓʊk͡p̚˦˥ jan˧˧]bút rising danh level

  a pen name

  for “pen name” meaning: A fictitious name used by an author in place of their actual name; a writer's pseudonym.

• biệt hiệuListennoun
  Hanoi [ʔɓiət̚˧˨ʔ hiəw˧˨ʔ] · Saigon [ʔɓiək̚˨˩˨ hiw˨˩˨]biệt heavy hiệu heavy

  nickname; alias

  for “pen name” meaning: A fictitious name used by an author in place of their actual name; a writer's pseudonym.