Super Search Plurals and Misspellings Not Working?

Question

On the website http://constructionbook.bnibooks.com/, I'm trying to modify Super Search to get search on the website the way we want it, but I'm having some difficulties.

Super Search Version 2.1.4, Expression Engine Version 2.8.1

We have fuzzy searching turned on with Super Search, and we set search to match plurals and singulars as well as misspelled words. However, it does not appear to be working.

I know that Super Search is supposed to build a database for misspelled words, but when I search for "code book", I get two results on the website. However, when I search "code books", I get zero results.

The parameter search_word_within_words is currently set to "no". Is this affecting how plurals and misspelled words are searched? Otherwise, what could be causing this issue?

EDIT: Here is the {exp:super_search:results} portion of our search template.

    {exp:super_search:results
        channel="products"
        limit="12"
        show_future_entries="yes"
        search_in="title|product_display_title|product_author|product_sku|product_isbn"
        search_words_within_words="yes"
        allow_repeats="no"
        paginate="bottom"
        fuzzy_distance="2"
        fuzzy_weighting="yes"
    }

        {if super_search_no_results}
            <div class="col-md-12">
                <p>No results matched your query.</p>
            </div>
        {/if}

        {if super_search_total_results==1}
            {redirect="product/{url_title}"}
        {/if}

        {if count == 1 OR count == 4 OR count == 7 OR count == 10}

        <div class="ad-col m-bottom">
            <div class="row ">

        {/if}
                <div class="col-md-4 ad-small">
                    <div class="well bg-1 ad-col-height">
                        <h4><a class="inherit-hyperlink" href="{url_title_path=product}">{title}</a></h4>
                        <div class="row m-top">
                            <div class="col-md-4">
                                <a href="{url_title_path=product}"><img class="img-responsive" src="{if product_thumbnail}{product_thumbnail}{if:else}/media/products/noi.jpg{/if}" alt="{title}"></a>
                            </div>
                            <div class="col-md-8">
                                {if product_tag!="" AND product_tag != "None"}
                                    <p class="{product_tag}">{product_tag:label}</p>
                                {/if}                           
                                {if product_author}<p><small>By {product_author}</small></p>{/if}
                                <p>Product Code: {product_sku}
                                <br />Price: {exp:store:product entry_id="{entry_id}" disable_form="yes" disable_javascript="yes"}{price}{/exp:store:product}
                                <br />{if product_binding != "Other"}{product_binding}{/if}</p>
                                <p><a href="{url_title_path=product}" class="btn btn-default">View Details</a></p>
                            </div>
                        </div><!-- /.row -->
                        <div class="row">
                            <div class="col-md-12 m-top">
                                {product_short_description}
                            </div>
                        </div>
                    </div><!-- /.well -->
                </div><!-- /.ad-small -->

        {if count == 3 OR count == 6 OR count == 9 OR count == 12 OR count == total_results}
            </div><!-- /row -->
        </div>
        {/if}

        {paginate}

        <div class="text-center">
        {pagination_links}
        <ul class="pagination">
        {first_page}
        <li><a href="{pagination_url}" class="page-first">&laquo;</a></li>
        {/first_page}

        {previous_page}
        <li><a href="{pagination_url}" class="page-previous">&lt;</a></li>
        {/previous_page}

        {page}
        <li {if current_page}class="active"{/if}><a href="{pagination_url}" class="page-{pagination_page_number} ">{pagination_page_number}</a></li>
        {/page}

        {next_page}
        <li><a href="{pagination_url}" class="page-next">&gt;</a></li>
        {/next_page}

        {last_page}
        <li><a href="{pagination_url}" class="page-last">&raquo;</a></li>
        {/last_page}
        </ul>
        {/pagination_links}
        </div>

        {/paginate}

    {/exp:super_search:results}

Answer 1

Fuzzy searching needs time to "learn" from new words, which means Super Search might not know of all possible fuzzy permutations during the first encounters with the word.

It should be noted that Fuzzy Searching, as cool of a feature as it is, runs on some complex algorithms from a 3rd party library. It's very possible that between that, and the Lexicon taking time to rebuilt itself every once and a while, that you'll experience some inconsistencies over time with the Fuzzy Searching feature.