Perhaps you should try some spelling variations:
ban hanh » ban hang
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
cua te » cua tu
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang o hoi. hieu ((ve cam) or (va cham)) duc ((va hanh) or (ban hanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. hieu ((ve cam) OR (va cham)) duc ((va hanh) OR (ban hanh)) vai cua te.
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoi. hieu ((ve cam) or (va cham)) duc ((va hanh) or (ban hanh)) vai cua te*.