Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
co hoi » co hoc, co loi
soc va » hoc va, loc va, doc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((co hoi) or (x ho)). hieu ve cham soc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((co hoi) OR (x ho)). hieu ve cham soc va hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((co hoi) or (x ho)). hieu ve cham soc va hanh di cua tre*.