How to do a search on a PHP/SQL site?

Question

PHP

Hello, you need to do a search on the site ... I
use this option:

$q = "SELECT * FROM `books` WHERE `name` LIKE '%$query%' OR `subject` LIKE '%$query%' OR `autor` LIKE '%$query%' OR `form` LIKE '%$query%' OR `form` LIKE '%$queryWithoutChars%' ";

How can you improve search quality?
Advise some libraries, techniques, examples.
Thanks in advance!