Perhaps you should try some spelling variations:
phan duc » pham duc, phan tu, phan dau
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu van
hieu va » lieu va, hieu qua
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
cua cu » cua chu, cua cau, cua su
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang x hoi. ((hieu ve) OR (hieu va)) phan duc ((va hanh) OR (van hanh)) vai cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky nang x hoi. ((hieu ve) OR (hieu va)) phan duc ((va hanh) or (van hanh)) vai cua cu~".
• Adding a wildcard symbol may retrieve word variants: tu san ky nang x hoi. ((hieu ve) OR (hieu va)) phan duc ((va hanh) or (van hanh)) vai cua cu*.