Hi David, thanks to remind me about my topic 10 years ago. But I would like to tell you that all topics only find or search foreign language character, meanwhile I want to know the way to find/change the foreign language (not foreign language characters) with the latin character such as english, french, germany language, because my default language is Indonesian.
David, if you don’t mind, please to showing me how to find/change any language besides Indonesian language in my long document. Thank you for your kindness.

In Publishing industry, usually have a procedure in editorial department to change all the text using foreign language change to italic format, so the reader should know that the words or sentences its not the default language. Notes: language its not the other character than latin character (e.g., accented characters, characters from other scripts like Cyrillic, Chinese, etc.). So I hope Adobe can develope InDesign could be make it easier to find/change all the text that using foreign language/ other language than default language. Thank You.

Thank You Steve for your advice. But with your expression, its not work, because when I click find next, all words selected not only foreign language. Meanwhile what I want is the expression GREP only find the foreign language (out of default language). Let say, I use Bahasa Indonesia as a default language, then all out of default language should be change to italic.