Perhaps you should try some spelling variations:
sang tao » hang tai
tao khoi » tao hoi, thao khoa, lao khoa
cham duc » pham duc, cham soc, pham duy
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty sang » ty xang, ty hang, duy sang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
lam cua » nam cua, lam chat
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty sang tao khoi. hieu va cham duc ((va hanh) or (va danh)) lam cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty sang tao khoi. hieu va cham duc ((va hanh) OR (va danh)) lam cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ty sang tao khoi. hieu va cham duc ((va hanh) or (va danh)) lam cua tre*.