Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
sang ma » tang ma, nang ma, sang tao
va cach » va cac
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
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: so sach y ((nang xa) OR (sang ma)) hoi. lieu va cach thuc va danh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: so sach y ((nang xa) or (sang ma)) hoi. lieu va cach thuc va danh di cua tre*.