Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
dan dich » van dich, ban dich, dai dich
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, mang xa, ang xa
nang ma » tang ma, sang ma, nang cao
dich di » dich i, dich dien, dich dinh
cua tre » cua te, cuu tre, cua triet
va nam » van nam, ha nam, va nay
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((((nang xa) or (nang ma))) or (nang x)) hoi. lieu va nam thuc dan dich di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((((nang xa) OR (nang ma))) OR (nang x)) hoi. lieu va nam thuc dan dich di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((((nang xa) or (nang ma))) or (nang x)) hoi. lieu va nam thuc dan dich di cua tre*.