The system is designed to allow keyword based search over the content of the file in addition to the query over meta-properties. They can be combined in an arbitrary expression in which one or more keyword based expressions (in Lucene syntax) can appear at any places inside the expression. Given the same keyword search engine , this ability enables a user to control what and how he/she would to find in a much finer way than the dumb one keyword search functionalities available now. The use of Lucense.Net search engine brings a user directly to the state of art (for small scale search) of it, and makes it better used.
This feature is not opened to public yet in the current version of the system however.