Indexing

Question

Hi friends
i want to make a indexing like windows's indexing
this is it's code but i don't work how i can correct it?

 
public void Search()
{
try
{
OleDbConnection cn = new OleDbConnection("Provider='MSIDXS';Data Source='TestCatalog'");
string goal = textBox1.Text.ToString();
string query = "select Path from scpoe() WHERE FREETEXT(contents, '" + goal + "')";
OleDbCommand cmd = new OleDbCommand(query, cn);
cn.Open();
OleDbDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
listView1.Items.Add(dr[0].ToString());
}
dr.Close();
cn.Close();
}
catch (Exception)
{
MessageBox.Show("Not Found");
}
}
private void button1_Click(object sender, EventArgs e)
{
this.Search();
}

I think it's better to explain some thing about it:
when you type only a word like"windowsForm" in search Textbox with this Query it must shows all of documents that included this word and show it in listview but it doesn't work
PLZ Help