Zoho Desk Search Endpoint

Hi, we are using https://desk.zoho.com/api/v1/search endpoint and we are struggling to understand the behaviour from the documentation.

How would we perform a search for all resources with a particularly property value. For example to search all resources where ownerId=123345678 ?

At the moment it looks like whatever is in `searchStr` param, will be matched across all properties of a resource.

Thanks