# Query String with Fuzzy search using ~ operator

**URL:** https://discuss.elastic.co/t/query-string-with-fuzzy-search-using-operator/247844
**Category:** Elasticsearch
**Created:** [September 8, 2020, 8:20am UTC](https://discuss.elastic.co/t/query-string-with-fuzzy-search-using-operator/247844 "2020-09-08T08:20:08Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![learning21](https://avatars.discourse-cdn.com/v4/letter/l/e19adc/32.png) [@learning21](https://discuss.elastic.co/u/learning21)
#### Post date: [September 8, 2020, 8:20am UTC](https://discuss.elastic.co/t/query-string-with-fuzzy-search-using-operator/247844/1 "2020-09-08T08:20:08Z")

</div>

Hi,

I am referring to [this](https://stackoverflow.com/questions/33225204/fuzzy-searching-with-query-string-elasticsearch) and am able to perform a fuzzy search with query\_string in kibana.

In kibana "salry~" is being searched and it returns results with "salary" due to ~ operator for fuzziness.

```auto
    GET help/_search
    {"_source":{
      "excludes": ["id","prod","desc","html"]}, 
      "from": 0,
      "size": 25, 
    "query": {
     "bool": {
       "should": [
         {"query_string": {
           "query": "salry~",
           "fields": ["title.title_exact"]
           , "fuzziness": "3"
           , "fuzzy_prefix_length": 3
         }},
      {"query_string": {
        "query": "salry~",
        "fields": ["title"]
           , "fuzziness": "3"
           , "fuzzy_prefix_length": 3    
      }}
      ] 
     }}}

```

However, can you help me with the corresponding .Nest Fluent DSL as what I have currently does not apply fuzziness - the result set returned is empty as there are no matches for "salry"

```auto
    {
        return _client.Search<SearchAutocompModel>(s => s
            .Source(sf => sf
               .Excludes(i => i
               .Fields(p => p.Desc, p => p.Prod, p => p.Id, p => p.Html)))
            .From(0)
            .Size(25)
            .Query(q => q
             .Bool(b => b
              .Should(s => s
                .QueryString(c => c 
                .Query(keyword)
                .Boost(2)
                .Fields(f => f
                   .Field(p => p.Title.Suffix("title_exact")))
                .Fuzziness(Fuzziness.Auto)
                .FuzzyPrefixLength(3)),
             s => s
            .QueryString(c => c
            .Query(keyword)
            .Fields(f => f
              .Field(p => p.Title))
            .Fuzziness(Fuzziness.Auto)
            .FuzzyPrefixLength(3)))))
            );
    }

```

Thanks!

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 6, 2020, 8:20am UTC](https://discuss.elastic.co/t/query-string-with-fuzzy-search-using-operator/247844/2 "2020-10-06T08:20:15Z")

</div>

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