OpenCart phrase search modification

I have an interesting problem with the search engine in OpenCart 2.3. When I search for phrases like "vitamin C" and "vitamin D", vitamin E and all the like (without quotes), I keep getting the same results. Can anyone help by reminding me what is causing this and how I can fix it so that it searches correctly and finds the right products?

I don't think this is a problem only on my site, ever since installing this version of this site, the search engine has been working this way

The search query uses LIKE %...% for each part of the search string. So C would match any product that has an C in the name.

If that is just the default opencart search you have, then I would well recommend installatin a search extension.

Ok, if search query uses LIKE %...%, how can I change it to find the right products without losing the correct results. Because when searching for longer phrases, the results returned by the search are perfect. The problem is only when one of the phrases is one letter, when there are two or more, everything is fine.

You could try this:
https://www.opencart.com/index.php?rout ... n_id=23494

@paulfeakins, thanks, will try it.