# Search observations using URLs by several conditions with an 'AND' operator instead of 'OR'

**URL:** <https://forum.inaturalist.org/t/search-observations-using-urls-by-several-conditions-with-an-and-operator-instead-of-or/41449>\
**Category:** General\
**Tags:** question\
**Created:** [May 4, 2023, 7:21pm UTC](https://forum.inaturalist.org/t/search-observations-using-urls-by-several-conditions-with-an-and-operator-instead-of-or/41449 "2023-05-04T19:21:23Z")\
**Posts on this page:** 1\
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**Author:** ![iorek](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.inaturalist.org/iorek/32/5579_2.png) [@iorek](https://forum.inaturalist.org/u/iorek)\
**Post date:** [May 5, 2023, 7:20pm UTC](https://forum.inaturalist.org/t/search-observations-using-urls-by-several-conditions-with-an-and-operator-instead-of-or/41449/2 "2023-05-05T19:20:24Z")

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I’m not an expert at this, but I believe different criteria params do a logical ‘AND’. If they are a list, or the same criteria it is an implicit ‘OR’. I believe what’s happening here is that these two criteria are expected to be used together and so being treated as an ‘OR’. See:  
[https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-2-of-2/18792](https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-2-of-2/18792)

You may want to try using the exclusion criteria ( `&without_term_id=`) to eliminate the ones you don’t want. Logically that should work with an ‘OR’.

Lots more info on using URL params here:  
[https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-1-of-2](https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-1-of-2)

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