Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi
cac ly » cac ky, cac le, cam ly
ly ban » uy ban, lo ban, ly bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((ma hoi) or (ma hoa)). hieu va cac ly ban hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (ma hoa)). hieu va cac ly ban hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (ma hoa)). hieu va cac ly ban hanh vai cua tre*.