Why YACY can't find words with accent?

Hello!

I need YACY to find words like “calendário” ou “pós” when I search for “calendario” ou “pos” and vice-versa, but it doesn’t find, why is that?

Searching for “calendario”, I want it to find “calendário”;
Searching for “calendário”, I want it to find “calendario”;
Searching for “pos”, I want it to find “pós”;
Searching for “pós”, I want it to find “pos”;

Thanks in advance!

Ii’m not sure, but could synonyms be set for that? At least for some frequently used terms, maybe?

The major search engines do this. Or sometimes seem to.