Something like this. Assumes your service portfolio document is in the same folder as your collection of description files and your description files are of the .docx format.
Code:
Sub ScratchMacro()
'A basic Word Macro coded by Gregory K. Maxey
Dim oRng As Range
Dim strPath As String
Dim strKeyWord As String
Set oRng = ActiveDocument.Range
strKeyWord = "Orange"
With oRng.Find
.Text = "Orange"
If .Execute Then
oRng.Text = vbNullString
strPath = ThisDocument.path & "\"
oRng.InsertFile strPath & strKeyWord & ".docx"
End If
End With
lbl_Exit:
Exit Sub
Resume
End Sub
That said, a better idea might just be to create building blocks in a global template addin and use the building blocks to define product descriptions.