Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
y sang » _ sang, duy sang
me hoi » le hoi
xuc va » duc va, tuc va, luc va

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: su sach y sang ((me hoi) OR (xa hoi)). hieu va cac xuc va hanh dai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y sang ((me hoi) or (xa hoi)). hieu va cac xuc va hanh dai ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: su sach y sang ((me hoi) or (xa hoi)). hieu va cac xuc va hanh dai ((cua tre) OR (cuu tre))*.