Perhaps you should try some spelling variations:
han » phan, nhan, than
hanh » phanh, nhanh, thanh, anh
nthanh » ntphanh, ntnhanh, ntthanh, ntanh, thanh, nhanh
hang » phang, nhang, thang, nang, bang
khanh » kphanh, knhanh, kthanh, kanh, thanh
dang » dan, dung, dong
hinh » chinh, dinh, minh
khinh » kchinh, kdinh, kminh, kinh, chinh, thinh
cminh » minh, chinh

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