Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc vat » thuc vat, thuoc va, thuoc bat
hanh doi » thanh doi, hanh noi, hang doi
vat hanh » vat thanh, van hanh, va hanh
hieu va » lieu va, hieu qua
doi cua » dai cua, hoi cua
su sach » so sach
vu sach » vu bach, vu khach
so hoc » co hoc, mo hoc, so hoa
va nam » van nam, ha nam, va nay
y nang » ky nang, ly nang, v nang
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu sach)) y nang ((x hoi) or (so hoc)). hieu va nam thuoc vat hanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang ((x hoi) OR (so hoc)). hieu va nam thuoc vat hanh doi cua te*.