Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai hoa, lai roi
hieu su » hieu sau, tieu su, hieu so
cao tuc » dao tuc, cao duc, cao suc
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
su cao » cu cao, vu cao, su co
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (tu cac)) ky sang lai hoi. hieu su cao tuc va hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (tu cac)) ky sang lai hoi. hieu su cao tuc va hanh vai cua tu*.