You can modify the ProcessDocument sub to extract the relevant titles however you need to. I don't have much confidence that searching for Times New Roman 12pt is an approach that will work consistently but changing the code to look for those attributes is easy enough.
Code:
Sub ProcessDocument(objWordDoc As Document, aSheet As Worksheet)
Dim aRng As Word.Range, sFound As String, iRow As Integer
Set aRng = objWordDoc.Content
With aRng.Find
.ClearFormatting
.Font.Name = "Times New Roman"
.Font.Bold = True
.Forward = True
.Wrap = wdFindStop
.Text = ""
If .Execute = True Then
sFound = aRng.Text
iRow = aSheet.UsedRange.Rows.Count + 1
sFound = Trim(Replace(sFound, vbCr, "")) 'replace paragraph marks with a space
aSheet.Cells(iRow, 1).Value = sFound
aSheet.Cells(iRow, 2).Value = objWordDoc.Name
aRng.Start = aRng.End
Do While .Execute = True
sFound = Trim(Replace(aRng.Text, vbCr, ""))
aSheet.Cells(iRow, 1).Value = aSheet.Cells(iRow, 1).Value & " " & sFound
aRng.Start = aRng.End
Loop
End If
End With
End Sub
The rest of the code doesn't need to change