# Query\_string with fuzzy and stammer filter works wierd
**URL:** https://discuss.elastic.co/t/query-string-with-fuzzy-and-stammer-filter-works-wierd/268956
**Category:** Elasticsearch
**Created:** [March 31, 2021, 7:58pm UTC](https://discuss.elastic.co/t/query-string-with-fuzzy-and-stammer-filter-works-wierd/268956 "2021-03-31T19:58:31Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@fedoroko](https://discuss.elastic.co/u/fedoroko)
#### Post date: [March 31, 2021, 7:58pm UTC](https://discuss.elastic.co/t/query-string-with-fuzzy-and-stammer-filter-works-wierd/268956/1 "2021-03-31T19:58:31Z")
Found some strange thing with query\_string and stemmer/snowball filters, can't understand how does it work and how to fix this, help me, please.
**Analyzer and filter** :
```auto
'analyzer' => [
'stem_en' => [
'tokenizer' => 'standard',
'filter' => [
'stem_en'
]
],
'snow_en' => [
'tokenizer' => 'standard',
'filter' => [
'snow_en'
]
],
],
'filter' => [
'stem_en' => [
'type' => 'stemmer',
'language' => 'english'
],
'snow_en' => [
'type' => 'snowball',
'language' => 'english'
],
]
```
**Field mapping** :
```auto
'example' => [
'type' => 'text',
'fields' => [
'snow' => [
'type' => 'text',
'analyzer' => 'snow_en'
],
'stem' => [
'type' => 'text',
'analyzer' => 'stem_en'
],
],
]
```
**Query 1** :
```auto
{
"explain": true,
"query": {
"query_string": {
"fields": ["example.snow", "example.stem],
"query": "walking~"
}
}
}
```
**Result 1** :
```auto
{
"took": 11,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 0,
"relation": "eq"
},
"max_score": null,
"hits": []
}
}
```
**Query 2** :
```auto
{
"explain": true,
"query": {
"query_string": {
"fields": ["example.snow", "example.stem],
"query": "walkin~"
}
}
}
```
**Result 2** :
```auto
{
"took": 3,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 1,
"relation": "eq"
},
"max_score": 1.5075798,
"hits": [
{
...,
"_explanation": {
"value": 1.5075798,
"description": "max of:",
"details": [
{
"value": 1.5075798,
"description": "weight(example.snow:walk in 0) [PerFieldSimilarity], result of:",
"details": [ ...
}
```
Why does query parser can't produce correct token "walk" from "walking~" but could do it with "walkin~"?
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 28, 2021, 7:58pm UTC](https://discuss.elastic.co/t/query-string-with-fuzzy-and-stammer-filter-works-wierd/268956/2 "2021-04-28T19:58:38Z")
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