Your question is still a little unclear to me, but this will give you the consecutive "perl module".

#!/usr/bin/perl

use strict;
use warnings;
use String::LCSS_XS qw(lcss);

my $longest = lcss (
    "perl find perl module",
    "perl module");
print $longest, "\n";

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In reply to Re^3: Finding a LCS module on word level by Khen1950fx
in thread Finding a LCS module on word level by st_ale

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