Perhaps you should try some spelling variations:
han » nhan, hang, than
phan » pnhan, phang, pthan
hanh » nhanh, hangh, thanh, anh, hinh
ntphanh » ntpnhanh, ntphangh, ntpthanh, ntpanh, ntphinh, ntthanh, ntnhanh, ntphang
ntpnhanh » ntpnnhanh, ntpnhangh, ntpnthanh, ntpnanh, ntpnhinh
phangh » pnhangh, phanggh, pthangh, phang
phanh » pnhanh, phangh, pthanh, panh, phinh, thanh, nhanh, phang
khanh » knhanh, khangh, kthanh, kanh, khinh, thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((han OR phan) or ((hanh or (ntphanh or ntpnhanh)) or (phangh or (phanh or khanh)))) dynasty~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((han OR phan) OR ((hanh OR (ntphanh OR ntpnhanh)) OR (phangh OR (phanh OR khanh)))) dynasty*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((han OR phan) or ((hanh or (ntphanh or ntpnhanh)) or (phangh or (phanh or khanh)))) dynasty*".