Google has been developing a font family called Noto, which aims to support all languages with a harmonious look and feel. Noto is Google’s answer to those little boxes that show up when your device doesn’t have a font to display a particular text.
It’s been five years in the making and spans more than 800 languages, and hundreds of thousands of characters.
Check it out here: https://www.google.com/get/noto/#sans-lgc