What does Judges 1:27 mean?

Manasseh didn't drive out the people of Beth-shean, Taanach, Dor, Ibleam, Megiddo, or their surrounding villages. The Canaanites kept living there. Judges 1:27 - Modern Text Bible

(Manasseh fails to fully remove the Canaanites from several key towns, leaving the original inhabitants in place.)