Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thien van » thi van
lam thuc » lam thuoc, am thuc, nam thuc
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
hanh day » hanh may, han day, hanh dao
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
van lam » van nam
day cua » dai cua
cua tre » cua te, cuu tre, cua triet

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: ((thu hoach) OR (thuoc sach)) ty nang xa hoi. thien van lam thuc van hanh day cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((thu hoach) or (thuoc sach)) ty nang xa hoi. thien van lam thuc van hanh day cua tre*.