Helo with multiple data validation

Hello,
I have excel 2019 version, so UNIQUE and FILTER won´t work.
I can´t use OFFSET also.

What are the possibilities to get multiple data validation in 2019 version?

Example added:
1 data validation: list of Projects from B column (Projects and works sheet)
2 data validation: list of works from C column (Project and works sheet) depending of projects