vlookup in macros

[helly19out]

Hi,
i have created a form in which if i enter any data and run macros button it stores the data on backend ...

Sub Button2_Click()
'
' Submit Macro
' Macro for HyperExcel{copy/paste/collate QA Form data}

Dim R1 As Range
Range("c5:d10").Select ' Selecting data range to be populated in Results sheet
Selection.Copy
Sheets("Results").Select 'Selecting the Results sheet to populate from QA Form
Let X = 3 'Start from the 3rd Row of the Result sheet
Do Until Cells(X, 1).Value = "" 'Check for the first blank row
X = X + 1
Loop
Cells(X, 1).Select
Selection.PasteSpecial Paste:=xlValues, Operation:=xlNone, SkipBlanks:= _
True, Transpose:=True
Rows("3:3").Select
Selection.Insert Shift:=xlDown, CopyOrigin:=xlFormatFromLeftOrAbove
Selection.Insert Shift:=xlDown, CopyOrigin:=xlFormatFromLeftOrAbove
Sheets("QA Form").Select 'Start deleting the data from the QA Form to give a blank form
Range("c5:d10").Select
Selection.ClearContents
ActiveWorkbook.Save 'Save the Workbook
End Sub

it basically cuts the data from one sheet n paste it to the new sheet .Now, i need a help as i like to add a "vlook up" in macros and the value returned back and if i change that value that will be change on the backend sheet