Modules & VBA :: Lookup Column In Text Box Access Form

I have 1 combo box and 1 text box i look up 2 columns in the combo box from that combo box i want to look up 2 column to text box

example:
Table values:
Col 1 Col 2
A 1
A 2

combo box successfully look up 2 columns but i look up to text box

Formula: =combo1.column(1)

But the text box look up the first row always even i choose the second row A

Also look-up first row 1

Any solution to look up 2nd row?