Perhaps you should try some spelling variations:
nam thuoc » nam thu, nha thuoc, cay thuoc
nam thuc » am thuc, nam thu, nam tu
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
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 (lieu va)) ((nam thuc) or (nam thuoc)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang x hoi. ((hieu ve) OR (lieu va)) ((nam thuc) OR (nam thuoc)) va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang x hoi. ((hieu ve) or (lieu va)) ((nam thuc) or (nam thuoc)) va hanh vi cua te*.