Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
chat xuc » chat huu, cam xuc, chao xu
van hanh » van thanh, ban hanh, van anh
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai hoa, lai roi
hieu su » hieu sau, tieu su, hieu so
su chat » su phat, du chat, so chat
xuc van » duc van, luc van, vuc van
vai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky sang lai hoi. hieu su chat xuc van hanh ((vai cua) or (lai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang lai hoi. hieu su chat xuc van hanh ((vai cua) OR (lai cua)) tu.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang lai hoi. hieu su chat xuc van hanh ((vai cua) or (lai cua)) tu*.