Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
ky sang » ky nang, ky dang, ky tang
lai roi » lai hoi, loi roi
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
su va » su van

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

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