Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
ky trong » ly trong, ke trong, cay trong
trong ha » trong nha, trong hai, trong hao
hieu van » hieu va, thien van, hieu ve
nam duoc » nam thuoc, da duoc, dat duoc
duoc ban » duc ban, quoc ban, buoc ban
thanh di » thanh doi, thanh de, thanh do
cuu tre » cua tre, cau tren, cau treo
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ha hoi » hoa hoi, ha noi, xa hoi
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky trong ha hoi. ((hieu van) or (lieu va)) nam duoc ban thanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky trong ha hoi. ((hieu van) OR (lieu va)) nam duoc ban thanh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky trong ha hoi. ((hieu van) or (lieu va)) nam duoc ban thanh di cuu tre*.