Key word search in relevance order gives the most relevant hits last

Key word search in relevance order gives the most relevant hits last.

How to reproduce:

1) Search for any known key word added in Light Room Classic.

2) Choose search order "Relevance".

Expected result: The most relevant search hits (images with the specified key word) should be first.

Actual result: The least relevant search hits come first (even totally irrelevant images). There is no option to reverse the order.