Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
tham thuc » nham thuc, pham thuc, tam thuc
nang mai » nang ma, nang tai, lang mai
danh sai » dung sai, danh bat, danh dau
mai hoi » mai khoi, dai hoi, lai hoi
va tham » van tham, va cham, va thanh
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach v nang mai hoi. lieu va tham thuc vat ((danh di) or (danh sai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach v nang mai hoi. lieu va tham thuc vat ((danh di) OR (danh sai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach v nang mai hoi. lieu va tham thuc vat ((danh di) or (danh sai)) cua tre*.