Perhaps you should try some spelling variations:
ky sang » ky dang, ky tang, duy sang
lai hoi » dai hoi, lai hoa, lai roi
hieu su » hieu sau, tieu su, hieu so
su phat » su pham, tu phat, xu phat
tu sai » tu bai, tu san, tu cai
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di cua
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 sai ((ky sang) OR (ky nang)) lai hoi. hieu su phat ((xuc va) or (duc va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ((ky sang) OR (ky nang)) lai hoi. hieu su phat ((xuc va) OR (duc va)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ((ky sang) OR (ky nang)) lai hoi. hieu su phat ((xuc va) or (duc va)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sai ((ky sang) OR (ky nang)) lai hoi. hieu su phat ((xuc va) or (duc va)) hanh vi cua te*.