Pass multiple values to a field in filter with and condition

Hi,

I have created one oData service and i want to pass two values to a field with 'and' Condition. I tried it but its giving me 500 internal server error

I tried to execute following url:

http://xx.xx.xxx.:xxxx/sap/opu/odata/sap/ZGW_MOB_TRIAL_SRV/ProjectListSet?$filter=QUERY_TABLE eq 'TVKOT' and DELIMITER eq '|' and FIELDNAME eq 'VKORG' and FIELDNAME eq 'VTEXT'

In this i want to pass 'VKORG' and 'VTEXT' to Fieldname.

But its giving 500 Internal server error.

Can anyone help me in this issue?

Appreciate your help.

Thanks,

Supriya