Perhaps you should try some spelling variations:
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu san, tu bac
ma hoi » xa hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc 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 sac) or (tu cac)) ky nang ((ma hoi) or (mai hoi)). hieu va cam xuc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu cac)) ky nang ((ma hoi) OR (mai hoi)). hieu va cam xuc va hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ky nang ((ma hoi) or (mai hoi)). hieu va cam xuc va hanh di cua tre*.