Bulk Find Exact cells contents and Replace

I found the below VBA on this site.    How would I cause it to only find exact cell contents and then replace those contents?
Thanks

Sub

MultiFindNReplace()

'Update 20140722

Dim

Rng 

As

Range

Dim

InputRng 

As

Range, ReplaceRng 

As

Range

xTitleId = 

"KutoolsforExcel"

Set

InputRng = Application.Selection

Set

InputRng = Application.InputBox(

"Original Range "

, xTitleId, InputRng.Address, Type:=8)

Set

ReplaceRng = Application.InputBox(

"Replace Range :"

, xTitleId, Type:=8)

Application.ScreenUpdating = 

False

For

Each

Rng 

In

ReplaceRng.Columns(1).Cells

InputRng.Replace what:=Rng.Value, replacement:=Rng.Offset(0, 1).Value

Next

Application.ScreenUpdating = 

True

End

Sub