Perhaps you should try some spelling variations:
han » nhan, than, hoan
hang » nhang, thang, hoang, nang, dang, bang
hanh » nhanh, thanh, hoanh, anh
thanh » tnhanh, tthanh, thoanh, tanh
tphanh » tpnhanh, tpthanh, tphoanh, tpanh, phanh
phan » pnhan, pthan, phoan
pnhanh » pnnhanh, pnthanh, pnhoanh, pnanh, nhanh, phanh
hinh » chinh, dinh, minh
hoanh » khoanh, hoang, doanh

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 hang) or ((((hanh OR hinh) or hoanh) or (thanh or tphanh)) or (phan or pnhanh))) dynasty~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((han OR hang) OR ((((hanh OR hinh) OR hoanh) OR (thanh OR tphanh)) OR (phan OR pnhanh))) dynasty.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((han or hang) or ((((hanh OR hinh) or hoanh) or (thanh or tphanh)) or (phan or pnhanh))) dynasty".
• Adding a wildcard symbol may retrieve word variants: ((han or hang) or ((((hanh OR hinh) or hoanh) or (thanh or tphanh)) or (phan or pnhanh))) dynasty*.