use 5.010;
use strict;

my $sample = "A-E-H-L";
my @sample_arr = split '-', $sample;

my @options = ( "A-B-F-G-H-K-M",    # idx = 0
                "A-E-G-H-L",        # idx = 1
                "A-C-E-G-H-J-L",    # idx = 2
                "B-F-H-K",          # idx = 3
                "A-B-F-G-H-K-L",    # idx = 4  
                "C-H"               # idx = 5
               );

my @matches = 
    map  { join '-', @$_ }
    grep {
        my $ok = 1;
        for my $s (@sample_arr) { next if $s ~~ @$_; $ok = 0; last };
        $ok;
    }
    map  { [split '-' ] }
    @options;

say for @matches;
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