Command doesn't work with "score_Name_min=" or "score_Name=" in the command:

scoreboard players set @e[-19,51,-1,dx=10,dy=8,dz=16,score_SnowballSide_min=0,score_SnowballSide=0,type=Snowball] SnowballSide 1

. (When I run it on a fill clock) i took out "score_SnowballSide_min=0 and score_SnowballSide=0" and it works but when I futher develop the minigame I need the augurement to work. Thanks mojang.