Using XML to mark up document contents with user-defined and self descriptive terms makes XML technology as one of the most widely used technology for information representation and exchanges over the Internet. As a result many documents are now represented and stored as XML documents on the web. Therefore, there is the need to develop precise, efficient and user-friendly search techniques. The existing systems that support Content Only (CO) queries can be categorized into three. The Lowest Common Ancestor (LCA)-based, query structuring systems and document structure based systems.