Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
dan danh » van danh, han danh, ban danh
danh vai » danh sai, danh va, doanh van
vu sach » vu bach, su sach, vu khach
hieu ve » hieu van
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
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: vu sach y nang x hoi. ((hieu ve) or (hieu va)) nam thuc dan danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang x hoi. ((hieu ve) OR (hieu va)) nam thuc dan danh vai cua te.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang x hoi. ((hieu ve) or (hieu va)) nam thuc dan danh vai cua te*.