Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
huu phuc » huu thuc, huu phach, huu duc
nang han » nang phan, nang hang, nang hanh
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cuu tre, cua triet
nang ha » nang hai, nang hoa, lang ha
vai cua » dai cua, hai cua, lai cua
hieu vu » hieu va, hieu ve, dieu vu
phuc va » phuc vu, thuc va, chuc va
hieu su » hieu sau, tieu su, hieu so
su sai » su tai, su hai, su dai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((nang ha) OR (nang han)) hoi. ((hieu vu) or (hieu su)) huu phuc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((nang ha) OR (nang han)) hoi. ((hieu vu) OR (hieu su)) huu phuc va thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky ((nang ha) OR (nang han)) hoi. ((hieu vu) or (hieu su)) huu phuc va thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sai ky ((nang ha) OR (nang han)) hoi. ((hieu vu) or (hieu su)) huu phuc va thanh vai cua tre*.