# Looker Studio Connector: Regexp Matches don't work

**URL:** <https://community.piwik.pro/t/looker-studio-connector-regexp-matches-dont-work/1472>\
**Category:** API & integrations\
**Created:** [January 8, 2023, 5:44pm UTC](https://community.piwik.pro/t/looker-studio-connector-regexp-matches-dont-work/1472 "2023-01-08T17:44:31Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![loldenburg](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/loldenburg/32/965_2.png) [@loldenburg](https://community.piwik.pro/u/loldenburg)\
**Post date:** [January 14, 2023, 4:46pm UTC](https://community.piwik.pro/t/looker-studio-connector-regexp-matches-dont-work/1472/8 "2023-01-14T16:46:33Z")

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Hmm thanks, I still can’t explain this logically in any way. There are no issues with it in other widgets which also use filters.  
But as soon as I use ANY RegExp-based filter together with the main filter, it breaks.

If I e.g. do:  
INCL Title “contains” “word” → works fine  
But:  
INCL Title “RegExp match” “word” → is ignored (no results)

Update:  
But I have found the reason now:  
“RegExp Match” is a FULL Match (other than what I would expect, because RegExp matches are usually “contains” matches unless specified otherwise, e.g. in JS “dog”.match(/do/) returns something. This is also how the RegExp “match” works for Google Analytics data. It would imho be good if Piwik followed the same logic or makes this clearer.

So in short, if I use  
“RegExp match” “._word._”, it works.

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_[View the full topic](https://community.piwik.pro/t/looker-studio-connector-regexp-matches-dont-work/1472)._