Perhaps you should try some spelling variations:
thien van » thi van
bac thuc » bao thuc, bac thua, cach thuc
su sach » so sach, vu sach
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
van bac » van ban, van bao, van hac
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) v nang xa hoi. thien van bac thuc va hanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) v nang xa hoi. thien van bac thuc va hanh di cua tre*.