Perhaps you should try some spelling variations:
sang tao » hang tai
cham tuc » nham thuc, pham thuc, tham thuc
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
tao hai » tao dai, tao tai, tai hai
hieu ve » hieu van
sach ky » sach y, sach ty, sach kem
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
sac ky » cac ky, sai 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 ((sach ky) or (sac ky)) sang tao hai. ((hieu ve) OR (hieu va)) cham tuc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) sang tao hai. ((hieu ve) OR (hieu va)) cham tuc va danh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sac ky)) sang tao hai. ((hieu ve) OR (hieu va)) cham tuc va danh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sac ky)) sang tao hai. ((hieu ve) OR (hieu va)) cham tuc va danh vi cua te*.