Keywords change. It is recommended best practice to do a specific keyword analysis for each language and market you will be targeting before launching any new activity.
Keywords are closely linked to:
The language itself : obviously, users do not use the same search terms in each language, although there are keywords that can be 'translated' from one language to another. Still, it is always best practice to create an ad-hoc keyword list for a new language.
The market/country: There are differences between countries that share a common language. The culture and habits of a country condition the way in which certain products and services are searched for, so we also recommend performing additional keyword research.