Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
chat luc » chat xuc, chat lua, nhan luc
hieu vu » hieu ve, hieu su, dieu vu
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai hoa, lai roi
vi cua » vai cua, di cua
luc va » duc va, tuc va, loc va
tu san » thu san, tu can, vu san
tu ban » thu ban, te ban
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) OR (tu ban)) ky sang lai hoi. ((hieu vu) or (hieu va)) chat luc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ky sang lai hoi. ((hieu vu) OR (hieu va)) chat luc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (tu ban)) ky sang lai hoi. ((hieu vu) or (hieu va)) chat luc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (tu ban)) ky sang lai hoi. ((hieu vu) or (hieu va)) chat luc va hanh vi cua te*.