How can query this information?

Dim con As New MySqlConnection("Data Source=localhost;Database=coa;User=root;Password=12345")
       Dim da As New MySqlDataAdapter
       Dim dt As New DataTable
       Dim sql As String

       sql = "Select PhoneNumber, FirstName, LastName, Course, Year From students"
       sql = sql & " Where Course like '" & cbc.Text & "'"
       sql = sql & " Where Year like '" & cby.Text & "'"

       With cmd
           .CommandText = sql
           .Connection = con
       End With

       With da
           .SelectCommand = cmd
           .Fill(dt)
       End With

       'for clearing list view
       myview1.Items.Clear()

       If dt.Rows.Count = 0 Then
           MessageBox.Show("No Record Found.", "Check Again", MessageBoxButtons.OK, MessageBoxIcon.Information)
           Exit Sub
       End If
       For i = 0 To dt.Rows.Count - 1
           With myview1
               .Items.Add(dt.Rows(i)("PhoneNumber"))
               With .Items(.Items.Count - 1).SubItems
                   .Add(dt.Rows(i)("FirstName"))
                   .Add(dt.Rows(i)("LastName"))
                   .Add(dt.Rows(i)("Course"))
                   .Add(dt.Rows(i)("Year"))
               End With
           End With
       Next

   End Sub