Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
sach ky » sac ky, sach y, sach ty
hanh va » hang va, hanh vi
thuc va » thuc vat, thuc dan
te sach » toc sach
van cau » van dau, van hau, van chat
van cam » van nam, van lam, van dam
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca 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: te sach ky dang xa hoi. thien ((van cam) OR (van cau)) ((thuc va) OR (thuc day)) hanh va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xa hoi. thien ((van cam) or (van cau)) ((thuc va) OR (thuc day)) hanh va cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xa hoi. thien ((van cam) or (van cau)) ((thuc va) OR (thuc day)) hanh va cua tre*.