Perhaps you should try some spelling variations:
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cuc tre » cua tre, cuu tre, cuc thue
duc tre » duoc tren, duc tien
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x hoi. lieu va cam duc ((va hanh) OR (va danh)) tai ((cuc tre) OR (duc tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang x hoi. lieu va cam duc ((va hanh) or (va danh)) tai ((cuc tre) OR (duc tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang x hoi. lieu va cam duc ((va hanh) or (va danh)) tai ((cuc tre) OR (duc tre))*.