Can Linq lib generate query for nested AND/or filters?

[susanhuhu]

I have code below
DataServiceQuery.DataServiceOrderedQuery)container.Docs.Where(d =>
(d.SourceType == "Commercial" && d.ApplicationName == "all_up")
|| (d.SourceType == "Consumer" && d.ApplicationName == appName));

with Odata clint lib 7.20.0, it generates a query as below
$filter=SourceType eq 'Commercial' and ApplicationName eq 'all_up' or SourceType eq 'Consumer' and ApplicationName eq 'OWA'

It doesn't add () for sub queries so the filter is wrong. How can I workaround this issue please? Or Odata client library doesn't support such nested queries?