Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
thanh vi » hanh vi, thanh va, thanh ve
hieu su » hieu sau, hieu so, hieu suat
tieu su » thieu so
lai hoi » dai hoi, lai hoa, lai roi
vi cua » vai cua, di cua
xu gia » xu giao, vu gia
sac ky » cac ky
cua te » cua tu

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) or (sai ky)) sang lai hoi. ((hieu su) or (tieu su)) chao xu gia thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) sang lai hoi. ((hieu su) OR (tieu su)) chao xu gia thanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) sang lai hoi. ((hieu su) or (tieu su)) chao xu gia thanh vi cua te*.