Entries from previous course don't appear

I’ve created a second course of Ancient Greek. When adding new words, I expected the system to offer me entries I had already introduced in previous courses of the same language. But that is not the case: the system offers me words and definitions made only by other creators (or is there anything like a general curated database for each language whose entries are offered to any creator?).
Is there any way to reuse entries I’ve created in previous courses?

Thanks in advance.