Okay, I have the magento e-commerce application, which has the search module from Wyomind Elasticsearch® Autocomplete. Within this module there is an index settings configuration (the json file from the first post) where I was recommended by the module's support to solve my problem.
The scenario is as follows, when I search for a product by the term "oil", the search results are products with the name "Mobil Oil", "Soy Oil", "Oil Shampoo", "Oil Sardine", "Sunflower Oil ", "Lavender Oil Adhesive Gel " and the expected result should be "Oil Shampoo", "Oil Sardine", "Lavender Oil Adhesive Gel ", "Mobil Oil", "Soy Oil", "Sunflower Oil ", that is, in ascending order from the searched term.