not able to retrieve data based on Oslc.where query

Hi,

I am using the below query to retrieve all the data, which were modified after 12/02/2015, unfortunately i am listed with all the available data. But i am looking to filter the condition based on the below query. Can someone shed some light on this.

I even tried with oslc.orderby=-dcterms:modified but that too didn't help

https://server:9343/qm/oslc_qm/contexts/_EXk_cJKnEeSuIs04gMjYWw/resources/com.ibm.rqm.planning.VersionedTestCase?oslc.where= dcterms:modified>="2015-12-02T18:42:30"