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

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 sau chao ((((xu va) OR (xu van))) or (su va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky sang lai roi. hieu sau chao ((((xu va) OR (xu van))) OR (su va)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky sang lai roi. hieu sau chao ((((xu va) OR (xu van))) or (su va)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky sang lai roi. hieu sau chao ((((xu va) OR (xu van))) or (su va)) hanh vi cua te*.