Perhaps you should try some spelling variations:
kho tang » cao tang
cua tre » cua te, cuu tre, cua triet
dinh di » dinh du, dinh vi, danh di
va dinh » van dinh, va kinh, va tinh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va
ky tang » ky nang, ky dang, ky trong
di cua » dai cua, doi cua, de cua
vu sai » vu hai, vu san, vu dai

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: vu sai ((ky tang) OR (kho tang)) ma hoa. ((hieu va) OR (hieu qua)) cam duc va dinh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sai ((ky tang) or (kho tang)) ma hoa. ((hieu va) OR (hieu qua)) cam duc va dinh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: vu sai ((ky tang) or (kho tang)) ma hoa. ((hieu va) OR (hieu qua)) cam duc va dinh di cua tre*.