Perhaps you should try some spelling variations:
hieu sau » hieu su, hieu suat, tieu su
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
sau chat » sat chat, sau chan, soat chat
va hanh » va thanh, va danh, ban hanh
cua tuc » cua duc, cua tu, cua thuoc
lai hoi » dai hoi, lai hoa, lai roi
ky danh » ky anh, ky dang
ky sang » ky nang, ky dang, ky tang
vi cua » vai cua, di cua
tu bai » tu ban, tu bat, te bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bai ((ky sang) or (ky danh)) lai hoi. hieu sau chat xuc ((va hanh) or (van hanh)) vi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ((ky sang) OR (ky danh)) lai hoi. hieu sau chat xuc ((va hanh) OR (van hanh)) vi cua tuc.
• Adding a wildcard symbol may retrieve word variants: tu bai ((ky sang) or (ky danh)) lai hoi. hieu sau chat xuc ((va hanh) or (van hanh)) vi cua tuc*.