in reply to Substring comparison

For some better context here are the Arrays:
Array1
XXX FFF ZZZ AAA BBB QQQ LLL JKK III CCC DDD DCD

Array2
XXX BBB AAA CCC DDD EEE
FFF NNN JKK III LLL QQQ

The output

FFF is not found in FFF NNN JKK III LLL QQQ ZZZ is not found in FFF NNN JKK III LLL QQQ AAA is not found in FFF NNN JKK III LLL QQQ BBB is not found in FFF NNN JKK III LLL QQQ LLL is not found in FFF NNN JKK III LLL QQQ JKK is not found in FFF NNN JKK III LLL QQQ III is not found in FFF NNN JKK III LLL QQQ CCC is not found in FFF NNN JKK III LLL QQQ DDD is not found in FFF NNN JKK III LLL QQQ DCD is not found in FFF NNN JKK III LLL QQQ