Hi Giang,
Would you be able to start using HTML5 Semantics in Eshop as part of the ever-changing web, to help keep our sites SEO friendly by supplying readable semantic elements to Google. I believe it will give EShop the edge over other competitors ecommerce systems as Google is now recognizing it as a ranking factor, along with SSL and a few other things...
For example, replace all non-semantic tags for semantic ones; <b> </b> for <strong> </strong> etc.
Cheers,
Tom