Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, tu cach
te sach » toc 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
su chao » su cao, sau chan
vai cua » dai cua, hai cua, lai cua
xu van » tu van, vu van, su van
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 (te sach)) ky sang lai hoi. hieu su chao xu van hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky sang lai hoi. hieu su chao xu van hanh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky sang lai hoi. hieu su chao xu van hanh vai cua tu*.