# How to write DtSearchConverter, NotSpanQuery in elastic?

**URL:** <https://discuss.elastic.co/t/how-to-write-dtsearchconverter-notspanquery-in-elastic/231823>\
**Category:** Elasticsearch\
**Created:** [May 9, 2020, 8:02am UTC](https://discuss.elastic.co/t/how-to-write-dtsearchconverter-notspanquery-in-elastic/231823 "2020-05-09T08:02:28Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Attila816](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/attila816/32/68007_2.png) [@Attila816](https://discuss.elastic.co/u/Attila816)\
**Post date:** [May 12, 2020, 9:26am UTC](https://discuss.elastic.co/t/how-to-write-dtsearchconverter-notspanquery-in-elastic/231823/2 "2020-05-12T09:26:22Z")

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I saw a topic in this community which is helpful for combining queries with Boolean Query:

- [Combining nested query with bool query](https://discuss.elastic.co/t/combining-nested-query-with-bool-query/94701)

Is there a way to see other examples like I mentioned above working as combining nested queries?

- QueryA AND NOT QueryB
- QueryA OR NOT QueryB
- QueryA w/50 NOT QueryB

Thanks

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_[View the full topic](https://discuss.elastic.co/t/how-to-write-dtsearchconverter-notspanquery-in-elastic/231823)._