Modules & VBA :: Search To Open Word Document From Access

I was tasked to create an application where by the user enters keywords into an Access form, and when he clicks the button, it will run the keywords against the file names stored in the table and automatically open the Word document that is the best match.

I have created a table query called Directory, which contains FPath (Z:), FName (Document1.doc) and Directory (Z:Document1.doc).

Code:
Private Sub Command2_Click()
Dim wrdApp As Word.Application
Dim wrdDoc As Word.Document
Dim filepath As String
Dim strSearch As String

If IsNull(Me.txtSearch) Or Me.txtSearch = "" Then
MsgBox "Please type in your search keyword.", vbOKOnly, "Keyword Needed"

[Code] ....

This is the code that I am currently using to search and open the Word documents, however, this code only manages to open Microsoft Word program without loading any documents. Also, there are no error messages when I click the submit button.