Oriental pied hornbill, or Sunda pied hornbill (convexus), or Malaysian pied hornbill.
(Cao cát phương đông, Anthracoceros albirostris) 
albirostris

The name is a combination of the Ancient Greek words:
 - ανθραξ anthrax, ανθρακος anthrakos meaning "coal black" ,
 - and κερας keras, κερως kerōs meaning "horn".

albirostris: From albus (“white”) +‎ rōstrum (“beak”)

The oriental pied hornbill an Indo-Malayan pied hornbill of the family Bucerotidae.