Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
cao hoi » cau hoi, co hoi, cao hoc
hieu va » lieu va, hieu qua
va cham » va chat, va tham
thue va » thuc va, thuyet va, thuc vat
cua tre » cua te, cuu tre, cua triet
thu va » thuc va, tu va, thu ha
di cua » dai cua, doi cua, de cua

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 cac ky nang cao hoi. hieu va cham ((thu va) OR (thue va)) thanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang cao hoi. hieu va cham ((thu va) or (thue va)) thanh di cua tre*.