Perhaps you should try some spelling variations:
thien van » thi van
phan thuc » nhan thuc, phap thuc, pham thuc
hoc sach » hoc sinh, hoc cac, hoc anh
van phan » van phong, van thanh, luan phan
kinh dai » sinh dai, kinh dao, kinh hai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
thuc va » thuc vat, thuc dan, thuc day
va kinh » va tinh, qua kinh
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: hoc sach ky ((nang xa) or (lang xa)) hoi. thien van phan thuc va kinh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky ((nang xa) OR (lang xa)) hoi. thien van phan thuc va kinh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((nang xa) or (lang xa)) hoi. thien van phan thuc va kinh dai cua tre*.