ngày hôm kia 
day before yesterday | Adverbs of Time | the day before yesterday | (Google translate:) ngày hôm kia | (Google translate:) Vorgestern |
[ ngày ] : day, daytime, date
[ hôm ] : day
[ kia ] : instead, other, that, those, yonder
Most Common Compounds Set 1:
Most Common Compounds Set 2 :