How to make sphinx match work?

Question

Sphinx

there is a product with sku 2065/3C
is select * from products where match('@sku 2065\\/3C')
but not found by any of the queries:
select * from products where match('@sku 2065\\/3')
select * from products where match('@sku 2065\\/')
select * from products where match('@sku 2065')
now version 2.2.11, tried on different ones.
upd.
doesn't seem to be looking if there are letters in the SKU.
if there is just 2065/3 or 2065/3+3, then it finds

Answer 1

Look at what gets into the logs and the normalized form that goes into the search