Rich snippets, structured data & Ajax applications

Hello All, 

i have the ajax application [1] that was improved to be crawable. I used this guideline [2]

today, my application on request with _escaped_fragment_ replies [3] with stuctured data [4]. 

i noticed that webmaster tool says me that "We do not detect any structured data on your site.". 

also i have made search in goolge on my website by keywords that should show snippets. i have found nothing. 

my questions: does rich snippets works with ajax applications? how i could ensure that all work well, are there good practices?

thanks.

[1] http://roomin.ru/search

[2] https://developers.google.com/webmasters/ajax-crawling/docs/getting-started

[3] http://roomin.ru/search?_escaped_fragment_

[4] https://support.google.com/webmasters/answer/99170?hl=en&ref_topic=1088472

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