KJV - And when they found him not, they turned back again to Jerusalem, seeking him.

ASV - and when they found him not, they returned to Jerusalem, seeking for him.

BBE - And seeing that he was not there, they went back to Jerusalem, to make search for him.

WEB - When they didn't find him, they returned to Jerusalem, looking for him.

YLT - and not having found him, they turned back to Jerusalem seeking him.

Notes