How does one search for documents on content based on phrases and logical operators, such as AND, OR, NOT, etc. Oracle's marketing material claims that Content Services is integrated with Oracle Search, which in turn supports Queries. But the end-user-query syntax documented within Ultra Search's documentation does not seem to work. Am I doing something wrong? Or is Content Services only partially integrated with Ultra Search and their is no support for content search queries? I tried both the search form in the Content Services application as well as the Federated Search Box which can be accessed from Oracle Collaboration Suite Portal page.