sphinx search by part of a word

Question

Sphinx

I'm trying to connect the sphinx to autocomplete, but it only searches for whole words and doesn't find "lenovo" for "leno"

How to set up search by part of a word?

Answer 1

and did it right.

Answer 2

enable prefix or infix in index settings (directives min_prefix_len or min_infix_len respectively)
and then search like this:
(@* leno*)