REST API query parameters for Purchase Orders not working

I am using the Purchase Order REST API to get the details of Purchase Orders by providing a line description. But the response I am getting is just 200 status but no data is coming as part of Response Payload although there is data available.

Request:

https://*****-dev1.fa.ocs.oraclecloud.com/fscmRestApi/resources/latest/purchaseOrders?q=CreationDate>'2025-08-01' AND UPPER(lines.Description) like UPPER('%iPhone%') &expand=lines&onlyData=true&limit=100

Response:

{    "items": [],    "count": 0,    "hasMore": false,    "limit": 100,    "offset": 0,    "links": [        {            "rel": "self",            "href": "https://*****-dev1.fa.ocs.oraclecloud.com:443/fscmRestApi/resources/11.13.18.05/purchaseOrders",            "name": "purchaseOrders",            "kind": "collection"        }    ]}