How do you say “middle ages” in Vietnamese?

Vietnamese words for “middle ages”

• trung cổListenadjective
  Hanoi [t͡ɕʊwŋ͡m˧˧ ko˧˩] · Saigon [ʈʊwŋ͡m˧˧ kow˨˩˦]trung level cổ dipping

  medieval

  for “middle ages” meaning: The period of primarily European history between the decline of the Western Roman Empire (antiquity) and the early modern period or the Renaissance; the time between c. 500 and 1500 CE.

• trung đạiListenadjective
  Hanoi [t͡ɕʊwŋ͡m˧˧ ʔɗaːj˧˨ʔ] · Saigon [ʈʊwŋ͡m˧˧ ʔɗaːj˨˩˨]trung level đại heavy

  medieval; middle

  for “middle ages” meaning: The period of primarily European history between the decline of the Western Roman Empire (antiquity) and the early modern period or the Renaissance; the time between c. 500 and 1500 CE.