Perhaps you should try some spelling variations:
sang tao » hang tai
sang lap » sang ma, sang tai, dan lap
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
vi cua » vai cua, di cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
cua te » cua tu
su va » su van

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 lap) OR (sang tao)) hoi. hieu su chao ((su va) OR (tu va)) hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((sang lap) OR (sang tao)) hoi. hieu su chao ((su va) or (tu va)) hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((sang lap) OR (sang tao)) hoi. hieu su chao ((su va) or (tu va)) hanh vi cua te*.