Query results problem

[Matt Glosson]

I have a table with Arabic text. There are two unique rows:

اِس
اُس

The first one consists of the following characters: 0x0627, 0x0650, 0x0633
The second one consists of the following characters: 0x0627, 0x064F, 0x0633

The problem is if I query for either of these, they both show up. This happens both on the command line and using phpmyadmin. Here is what I type for a query:

SET NAMES utf8;
SELECT urdu FROM transliteration WHERE urdu LIKE 'اِس';

Any thoughts? Thanks.