Perhaps you should try some spelling variations:
hang » nang, dang, bang
phanggh » pnanggh, pdanggh, pbanggh, phangh, phonggh, thanggh
phang » pnang, pdang, pbang, phan, phong, thang
hanh » anh, hinh
thanh » tanh, thinh
nhanh » nanh, nhinh, nganh, nhan, khanh
nphanh » npanh, nphinh, phanh
pthanh » ptanh, pthinh, phanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (hang or (((hanh OR thanh) or (nhanh or nphanh)) or ((pthanh or phanggh) or phang))) dynasty~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (hang OR (((hanh OR thanh) OR (nhanh OR nphanh)) OR ((pthanh OR phanggh) OR phang))) dynasty.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(hang or (((hanh OR thanh) or (nhanh or nphanh)) or ((pthanh or phanggh) or phang))) dynasty".
• Adding a wildcard symbol may retrieve word variants: (hang or (((hanh OR thanh) or (nhanh or nphanh)) or ((pthanh or phanggh) or phang))) dynasty*.