Having a website is an excellent start.
But you need to be able to attract visitors to your website. A search engine will look for specific content in a search and match them to a website containing that content. In real estate, those phrases will likely be related to details of a home listed in a specific location. An international search engine will look for words in the same way, but it will look for those words in the language being used by the person doing the search. If your website does not include any words from that language, it does not exist for them. There are many international search engines out there. Google alone has ones for every major language spoken today.