How do you say “head louse” in Vietnamese?

Vietnamese words for “head louse”

• chấyListennoun
  Hanoi [t͡ɕəj˧˦] · Saigon [cəj˦˥]chấy rising

  head louse

  for “head louse” meaning: A parasitic insect, Pediculus humanus capitis, which lives among the hairs on the head of a human and feeds on blood.

• chíListennoun
  Hanoi [t͡ɕi˧˦] · Saigon [cɪj˦˥]chí rising

  will; resolve; volition

  for “head louse” meaning: A parasitic insect, Pediculus humanus capitis, which lives among the hairs on the head of a human and feeds on blood.