Perhaps you should try some spelling variations:
cam truc » cau truc, nam truc, lam truoc
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
me hoi » le hoi
ve cam » ve cham, ve cac, va cam
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) or (vu bach)) ky nang ((me hoi) or (xa hoi)). hieu ve cam truc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (vu bach)) ky nang ((me hoi) OR (xa hoi)). hieu ve cam truc va hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (vu bach)) ky nang ((me hoi) or (xa hoi)). hieu ve cam truc va hanh di cua tre*.