Charles Ellicott Commentary Judges 1:30

"Zebulun drove not out the inhabitants of Kitron, nor the inhabitants of Nahalol; but the Canaanites dwelt among them, and became subject to taskwork." — Judges 1:30 (ASV)

Neither did Zebulun. —See Joshua 19:10-16. Nothing is known of the towns here mentioned. It is remarkable that Issachar is not mentioned, but it may perhaps be accounted for by the condition of contented subjection in which this tribe bowed his shoulder to the yoke (Genesis 49:14–15).