search not working Product names with special characters like semiautomático in magento 2
or any way to Ignoring special characters during catalog search?
how to solved this?
Default search is mysql based. So can be impacted by db character set options.
However is it possible you can look in the database for semiautomático value.
There is a possibility the accent character has saved as a html entity which is why you are not getting a match.
In which case you may have to look at this feature https://docs.magento.com/m2/ce/user_guide/marketing/search-synonyms.html