Ancestry's search engine has a lot of problems, but even after reporting this fact to Ancestry countless times, they still have done nothing about it.
This is why after some years of complaining I have decided to post this one of several problems I have found.
You come across a someone it a record that you were not looking for and then wish you had saved it, as although you now all the details Ancestry tells you that it does not exist. Or like in this case I kept the record and did another search of all records for this person to be told that there are no records that match your search even though you are looking at the record that you were searching for.
Another problem that Ancestry has is that, if you search within your family tree it will not find a lot of records that it has for the person in question, and it is best to do the search in a different tab or window, OUT of YOUR TREE
Use freebmd site before Ancestry for all old BMD's, as a great many are not on Ancestry although they do not make that clear or at least add a note on the search box.
Because of the amount of transcription errors I tent to have to search without using the family name, this is because of the useless limitations ancestry puts on the use of wild cards, WITH COMMENTS LIKE THIS WOULD RETURN TO MANY MATCHES, HOW MANY MATCHES DO THEY THINK I GET WHEN I HAVE TO SEARCH WITHOUT A FAMILY NAME ???
Please see examples attached