Question: we just need to translate to spanish, please see screenshot, we were unable to find, its everywhere 


Answer: 

The text is from default Magento: lib/web/mage/validation/validation.js 
So if you want translate it, you could translate through this file ib/web/i18n/en_US.csv or vendor/magento/module-ui/i18n/en_US.csv 
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