We use Google’s Autocomplete API to automatically predict and complete address searches with the Searchbox element. We’ve found that this API can cause some unintended translations of street addresses when a language is set on the User data type. When the result of this search is saved as a text field, we often find that the address saved isn't consistent with what was entered.
To work around this, we recommend implementing address search using a third-party tool. You’ll want to take a look at our Plugin Marketplace for a plugin that suits your needs, or alternatively search for another third-party API that offers autocomplete functionality.