FuzzyLookupFactory with DocumentDictionaryFactory returns only one result for document

I have setup the Suggester as follows:
<lst name="suggester">
<str name="name">SuggesterExact</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="indexPath">suggester_exact_fuzzy_dir</str>
<str name="exactMatchFirst">true</str>
<str name="dictionaryImpl">DocumentDictionaryFactory</str>
<str name="field">ProductGroup</str>
<str name="payloadField">Identity</str>
<str name="suggestAnalyzerFieldType">suggestTypeLc</str>
<str name="buildOnStartup">true</str>
<str name="buildOnCommit">false</str>
<str name="buildOnOptimize">true</str>
</lst>

When we pass a query like "apple" and there are more 3 documents with PeoductGroup such as "apples". Solr returns only one suggestion instead of 3.