Perhaps you should try some spelling variations:
cam thuc » am thuc, nam thuc, cam thu
vat danh » va danh, van danh, luat danh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
tang ma » mang may, tang van
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
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: tu sach ky ((nang xa) or (tang ma)) hoi. lieu va cam thuc vat danh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (tang ma)) hoi. lieu va cam thuc vat danh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) or (tang ma)) hoi. lieu va cam thuc vat danh di cua tre*.