Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
nam thuc » nam thuoc, am thuc, nam thu
day dinh » dao dinh, day danh, dang dinh
dinh vai » dinh van, dinh vi, dinh va
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
thi van » thi lan, thi hanh, thi nang
vai cua » dai cua, hai cua, lai cua
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 ky nang x ho. ((hieu ve) or (thi van)) nam thuc day dinh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang x ho. ((hieu ve) OR (thi van)) nam thuc day dinh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x ho. ((hieu ve) or (thi van)) nam thuc day dinh vai cua tre*.