số một thế giới 
first in the world, number one in the world [ số ] : (1) amount, number, figure, quantity, size (of clothing), digit, edition; digital; (2) gear (of a car); (3) destiny, fate, lot
[ một ] : one; a, an
[ thế ] : (1) manner, way, fashion, position, situation, posture; (2) so, thus, like that, such
[ giới ] : (1) (classifier); limit, border; (2) group of people, family, community, group
Most Common Compounds Set 1:
Most Common Compounds Set 2 :