Or search: yugoslavia, jugoslavija
2 Syllables: SU
Cato, credo, halo, Mayo, payroll, Pedro, Pharaoh, Plato, railroad, Zeno
3 Syllables: USU
Diego, Horatio, octavo, potato, tomato, tornado, volcano
4 Syllables: UUSU
Galileo
5 Syllables: UUSUU
Archipelago

Found 19 words across 4 groupings. Skipped 2 excess words of a similar stem.