Search description with or without dashes

No confusion, and this one’s simple: in the Settings > Relevanssi > Indexing > Advanced indexing settings, set “Hyphens and dashes” to “Remove” and then rebuild the index. This’ll do exactly what you need.

Thanks for the quick answer!!

I found an older thread and I already tried that but nothing changed.
And actually I don’t see any difference in the search results.
The search seems to work exactly as before I installed the Relevanssi plugin.

Try the Relevanssi admin search (Dashboard > Admin search). Does that work correctly? If installing Relevanssi seems to have no effect, it’s possible your site search is not using Relevanssi.

Do you have a live ajax search or a regular search where you load the search results page?

Just tried the admin search and its working perfectly.

I have live ajax search.

Is the live ajax search from a plugin or a theme? If it’s from a plugin, can you switch to Relevanssi Live Ajax Search? If it’s from your theme, which theme are you using? Some themes let you replace the live ajax search provider so you can switch it to use Relevanssi; some are hard-coded so you can’t do anything about it.

Its from the theme.
I am using Flatsome from UX Themes.

Flatsome ajax search may work, but sometimes requires a bit of code. See here for more information.

function rlv_flatsome_search_function( $query, $args, $defaults ) {
  $args['relevanssi'] = true;
  return get_posts( $args );
}

add_filter( 'flatsome_ajax_search_function', function() { return 'rlv_flatsome_search_function'; } );

Great!! Just added the code and it seems to work.
There is only one problem. When I type 978-618-03-1750-3 with or without dashes it brings out the right book as the firtst result but bellow it, it also brings all the books that their ISBN starts with 978-618-03

If you don’t want partial matching, set the Keyword matching setting in Relevanssi to “whole words”.

Already did that but nothing changed.

Actually it shows in the results 101 books no matter what I type on search.
Even if I search by title, it shows the right one on top and 100 more books bellow.

On the search results page? That’s probably something with Flatsome, and has nothing to do with Relevanssi. Flatsome search results page has some extra search results added.

Not at the results page. At the live results during typing.
Before adding the code that you send me, when i typed a book title, it showed only the right match and some books that contained the same words.

I don’t know; you should get the same results as you get from the Relevanssi admin search. Do you? Do you see the wrong results there as well?

At the admin search I just tried a title of a book and i get 4 results.
At the frontsite’s search i get the same number at the search results page but at the live results i get more than 100