Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
hanh vai » hanh vi, hanh va, hanh tai
van tham » van thanh, van tuan, van chat
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
dai hoi » dai hoc, dai hai, dai moi
ma hoi » mai hoi, xa hoi, ma hoa
tu ban » thu ban, te ban
tu sac » tu sach, tu cac, tu san

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 ban)) ky nang ((ma hoi) OR (dai hoi)). hieu van tham thuc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu ban)) ky nang ((ma hoi) OR (dai hoi)). hieu van tham thuc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu ban)) ky nang ((ma hoi) OR (dai hoi)). hieu van tham thuc va hanh vai cua tre*.