Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
vu sach » vu bach, su sach, vu khach
va chai » va cai, va chat, va chi
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
ve cua » le cua, de cua, te cua
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: vu sach y nang o hoi. lieu ((va chai) or (va cham)) duc va thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang o hoi. lieu ((va chai) OR (va cham)) duc va thanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang o hoi. lieu ((va chai) or (va cham)) duc va thanh ve cua tre*.