Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thien van » thi van
tham thuc » nham thuc, pham thuc, tam thuc
van tham » van thanh, van tuan, van chat
dinh dau » dinh dat, dinh du, danh dau
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
thuc va » thuc vat, thuc dan, thuc day
va dinh » van dinh, va kinh, va tinh
dau cua » dai cua, day cua, cau 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: thuoc sach ky ((nang xa) or (nang ma)) hoi. thien van tham thuc va dinh dau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky ((nang xa) OR (nang ma)) hoi. thien van tham thuc va dinh dau cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky ((nang xa) or (nang ma)) hoi. thien van tham thuc va dinh dau cua tre*.