Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
van hoc » van hoa
hoc duc » hoc duoc, hoc nuoc, hoc thuc
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hanh de, hang di
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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: te sach y nang ((ma hoi) OR (xa hoi)). hieu van hoc duc van hanh di cua tu~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (xa hoi)). hieu van hoc duc van hanh di cua tu*.