Reflection/Linq: Find class inside another in vb.net

I have the next class in my code:

Public Class MyClass
    Public ClassMyDictionary 
        Public Property something As String = "xxxxx"
    End Class

    Public Property dbId As Integer 
    Public Property dbDescription As String
    Public Property Activate As Boolean
    ...


End Class

What I am trying to do is to look for propertyInfo of MyDictionary class using Linq.

I tried to use

Dim propertyInfo = typeDest.GetProperty("MyDictionary", BindingFlags.IgnoreCase Or BindingFlags.Public Or BindingFlags.Instance)

But is returning me Nothing.

Is it possible to do?