Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, ban hanh
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, dia danh
cam duc » cam xuc, cao duc, pham duc
tu ban » thu ban, te ban
cua te » cua tu
ban ky » van ky, dan ky
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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 ban ky nang o hoi. hieu ve ((cam duc) OR (cao su)) ((va hanh) OR (va danh)) vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ban ky nang o hoi. hieu ve ((cam duc) or (cao su)) ((va hanh) OR (va danh)) vai cua te~".
• Adding a wildcard symbol may retrieve word variants: tu ban ky nang o hoi. hieu ve ((cam duc) or (cao su)) ((va hanh) OR (va danh)) vai cua te*.