Perhaps you should try some spelling variations:
cau cham » ca cham, cau chan, cau chap
hieu cau » nhieu cau, hieu cac, hieu ca
va thanh » gia thanh, ban thanh, va tinh
sang lai » sang tai, sang lap, mang lai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va danh, ban hanh
cham xu » chao xu, cham cuu, chat xuc
thu san » thuy san, thu ban, phu san
lai hoi » dai hoi, lai hoa, lai roi
ky sang » ky nang, ky dang, ky tang
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: ((thu san) or (tu ban)) ky sang lai hoi. hieu cau cham xu ((va hanh) OR (va thanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu san) OR (tu ban)) ky sang lai hoi. hieu cau cham xu ((va hanh) OR (va thanh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu san) or (tu ban)) ky sang lai hoi. hieu cau cham xu ((va hanh) OR (va thanh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu san) or (tu ban)) ky sang lai hoi. hieu cau cham xu ((va hanh) OR (va thanh)) vai cua te*.