Use Data::Dumper to inspect your datastructure. It probably is not what you think:

$ perl
use strict;
use warnings;

my %blah1 = ();
$blah1{condition} = "";
$blah1{terms} = [ "foobar" ];
my %blah2 = ();
$blah2{condition} = "AND";
$blah2{terms} = [ "foo", "OR bar" ];

my %tests = ();
$tests{1} = %blah1;
$tests{2} = %blah2;
use Data::Dumper;
print Dumper(\%tests);

__END__
$VAR1 = {
          '1' => '2/8',
          '2' => '2/8'
        };
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++ for using strict and warnings. Read Perl Data Structures Cookbook for more on hashes of hashes.