How to find the exact cell content in a column

Dear Friends,
i have been trying to find a cell content in a column.
below is the code that i am using

Selection.Find(What:="CAE-Z000123", After:=ActiveCell, LookIn:=xlFormulas, LookAt _
:=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlNext, MatchCase:= _
False, SearchFormat:=False).Activate

my problem is the code above serches the cell even if half the contents are found in any of the cell in the column. what i need is exact find of the cell value in a column.

Hope i have clarified to the larger extent.
please friends if some one could help me out.

Try changing xlPart to xlWhole

thanks you very much Thalassa, found the solution from your answer.
thanks a lot once again....