A (multicultural) Target Audience is a group with common cultural denominators - people from the same country living in a new country (Polish, Chinese living in the US for instance) OR people sharing the same religious beliefs (Orthodox, Muslims in the US).
The platform targets these groups based on the sites they visit and not on their language solely. Mundo's data mining and algorithms are constantly updating lists of sites where people from the same group or culture gather. Mundo then place ads on the sites that target your desired target audience to eliminate the risk of the ads being placed on sites that do not target the specific multicultural audience group.