How to change text on get_search_form()

Looking at your code block it appears you’re trying to translate the text in the button and the placeholder. You’re going about it all wrong: WordPress already allows for strings like that to be translated into any language. The easiest way is to visit Settings > General and pick the language you want to use (Hrvatski?) from the Site Language field. This will also set the correct language attribute in the <html> element.

You can find out more about how WP handles internationalization here.

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