Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
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 chat » su phat, du chat, so chat
tinh va » tich va, trinh van, trinh vat
tu sai » tu bai, tu san, tu cai
cua tu » cua tuc, cua cu, cua te
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
sai ky » sac ky
cua su » qua su

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

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