Hi,
The simplest and most effective way to get around this is using the synonyms feature. That lets you set global synonyms, which apply to all posts.
Unfortuntely we can not implement a language recognition or AI engine to the plugin to resolve these cases automatically – because it runs on your local server.
Some search plugin authors run 3rd party external search servers to access the customer data for a monthly fee. Those engines are usually more responsive and have such features – but we would like to avoid monthly subscription based models, and get the most out of a local search engine.