Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
lai hoi » dai hoi, lai hoa, lai roi
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
ca tren » cau tren, cu tren, la tren
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
di ca » di cau, di cua, doi ca

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 ((ma hoi) or (lai hoi)). hieu va cam xuc van hanh di ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((ma hoi) OR (lai hoi)). hieu va cam xuc van hanh di ca tren.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((ma hoi) or (lai hoi)). hieu va cam xuc van hanh di ca tren*.