Create new query, then go to the sql view of it and replace the code with this code:
SELECT distinct Yourtable.Yourfield
FROM Yourtable
WHERE (((Mid([yourfield],1,2)) Not In ("Ae","Be","Fe","Ge","He","Me","Pe","Te","Ve","Xe","Ze","Au","Bu","Fu","Gu","Hu","Mu","Pu","Tu","Vu...