I'm like @Igor_Motov and curious.
but the results I get are far from perfection.
What do you mean? What kind of results do you have?
Could you provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.
A full reproduction script will help readers to understand, reproduce and if needed fix your problem. It will also most likely help to get a faster answer.