  The necessary of buiding the searching system being able to support users
expressing their searching by natural language queries is very important and
opens the researching direction with many potential. It combines the
traditional methods of information retrieval and the researching of Question
Answering (QA). In this paper, we introduce a searching system built by us for
searching courses on the Vietnam OpenCourseWare Program (VOCW). It can be
considered as the first tool to be able to perform the user's Vietnamese
questions. The experiment results are rather good when we evaluate this system
on the precision
