Thanks Julie, this actually helped.
On searching for Elizabeth Nel, I got again the 2458 Matches
I then scrolled to the bottom and ticked the box Include name variant matches? NO ; Include married/current last name matches? NO () ; Include matches without dates? NO
Now when I sorted the table (reverse) on date of birth, I get 190 results. Much better (I did not know that I had to tick so many boxes 'down below' to get the same results I got in the past. Thanks for the heads up!