Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
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
tu sac » tu sach, tu san, tu bac
cua tu » cua tuc, cua cu, cua te
su cao » cu cao, vu cao, su co
tuc va » thuc va, truc va, tuc xa
cua su » qua su

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) or (tu cac)) ky sang lai hoi. hieu su cao tuc va hanh vai ((cua tu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu cac)) ky sang lai hoi. hieu su cao tuc va hanh vai ((cua tu) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu cac)) ky sang lai hoi. hieu su cao tuc va hanh vai ((cua tu) OR (cua su))".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ky sang lai hoi. hieu su cao tuc va hanh vai ((cua tu) OR (cua su))*.