# Tokenize string based on available field values
**URL:** https://discuss.elastic.co/t/tokenize-string-based-on-available-field-values/1044
**Category:** Elasticsearch
**Created:** [May 20, 2015, 10:58pm UTC](https://discuss.elastic.co/t/tokenize-string-based-on-available-field-values/1044 "2015-05-20T22:58:28Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@virtuman](https://discuss.elastic.co/u/virtuman)
#### Post date: [May 20, 2015, 10:58pm UTC](https://discuss.elastic.co/t/tokenize-string-based-on-available-field-values/1044/1 "2015-05-20T22:58:28Z")
We use PHP for processing all data, and PHP is extremely slow with processing large(r) arrays of data so this question is about whether or not elasticsearch can do this internally:
1. we have an index with list of documents where one of the fields is a list of keywords or keyword-phrases associated with this document; example:
classify Doc title: "women-\>beauty"
classify Doc keywords: ["lipliner", "lip liner", "hair dryer", "mascara", "nail", "eyelash", "curling iron"]
2. Every time we attempt to classify a product internally, we run an \_analyze query to find all matched keyword association against a product title, ie: title: " **Philips curling iron for thick hair**"
3. Currently we run a match query against classify Doc keywords to see if anything matches but it results in a lot of noise, because multi-worded keywords like: " **Panasonic iron for silk clothing**" will "match" classify Doc keywords based on a word " **iron**" vs what is defined as a phrase in classify Doc keywords " **curling iron**".
**QUESTION:**
1. Is it possible to have elasticsearch tokenize search string based on the list of defined keywords?
2. is it possible to add stemming to #1 to allow "wider" lookups like "Best irons for clothes" "Cheapest curling irons from panasonic"
I figure some sort of analyzer could be used for that, or maybe even ?explain=true might already do something similar?
Thank you.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 12:12am UTC](https://discuss.elastic.co/t/tokenize-string-based-on-available-field-values/1044/2 "2017-07-06T00:12:51Z")