Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu va » lieu va
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
soc va » hoc va, loc va, doc va
vi cua » vai cua, di cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "va cac ky lang ha hoi. ((hieu va) OR (hieu qua)) cham soc va hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: va cac ky lang ha hoi. ((hieu va) OR (hieu qua)) cham soc va hanh vi cua tre*.