Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
thuc cay » thuc day, thuc can, thuc cao
cay xanh » cay lanh, cao anh, day manh
so sach » so sanh, bo sach, co sach
sach va » sach xa, sach ha, sach dao
nang ma » sang ma, nang cao, mang may
tang ma » mang may, tang van
va nham » va cham, va tham, va nha
xanh di » danh di, vanh dai, xanh tai
di cua » dai cua, doi cua, de cua
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach va ((nang ma) or (tang ma)) hoi. lieu va nham thuc cay xanh di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach va ((nang ma) OR (tang ma)) hoi. lieu va nham thuc cay xanh di cua su.
• Adding a wildcard symbol may retrieve word variants: so sach va ((nang ma) or (tang ma)) hoi. lieu va nham thuc cay xanh di cua su*.