nghiêm minh 
strict and clear, no-nonsense [ nghiêm ] : grave, strict, severe, stern, solemn; Attention!
[ minh ] : bright, clear; oath, alliance; Ming (1368-1644, last native Chinese dynasty in the history of China)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
kỷ luật nghiêm minh strict and clear discipline