I have noticed some apps in two ways: 1- when trying to download I write different words in different languages and still can be found (how this can be done?) I think key words but don't really know how it works 2- app already downloaded (when I search in both arabic and english for it's name I can found it) how this is done? thanks for your valuable reply it will help a lot.

I have noticed some apps in my iPhone can be found by wiring different words and even in the app store can anyone reply with detailed answer to know how to implement it. thank you