If Form_frm_suchen.opt_vorschlag_nr.Value = True Then
sql = "SELECT * FROM tab_Vorschlaege WHERE VorschlagsNr LIKE " & "'*" & Text4 & _
  "*';"
Else
If Form_frm_suchen.opt_Stichwort.Value = True Then
sql = "SELECT * FROM tab_Vorschlaege WHERE Stichwort LIKE " & "'*" & Text4 & _
  "*';"
Else
If Form_frm_suchen.opt_Thema.Value = True Then
sql = "SELECT * FROM tab_Vorschlaege WHERE Thema LIKE " & "'*" & Text4 & "*';"
End If
End If
End If