When Israel had grown strong, they put the Canaanites to forced labor, and didn’t utterly drive them out.
Ephraim didn’t drive out the Canaanites who lived in Gezer, but the Canaanites lived in Gezer among them.
Zebulun didn’t drive out the inhabitants of Kitron, nor the inhabitants of Nahalol; but the Canaanites lived among them, and became subject to forced labor.
Asher didn’t drive out the inhabitants of Acco, nor the inhabitants of Sidon, nor of Ahlab, nor of Achzib, nor of Helbah, nor of Aphik, nor of Rehob; but the Asherites lived among the Canaanites, the inhabitants of the land, for they didn’t drive them out.