Perhaps you should try some spelling variations:
thanh tranh » thanh thanh, thanh tran, thanh trang
ban thanh » ban hanh, ban hang
tranh cua » doanh cua, manh cua
hieu van » hieu va, thien van, hieu ve
vu sach » vu bach, su sach, vu khach
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
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: vu sach y nang o hoi. ((hieu van) or (lieu va)) bac xuc ban thanh tranh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang o hoi. ((hieu van) OR (lieu va)) bac xuc ban thanh tranh cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang o hoi. ((hieu van) or (lieu va)) bac xuc ban thanh tranh cua tre*.