Perhaps you should try some spelling variations:
hieu suat » hieu luat, hieu qua
mang lai » mang lam, mang luoi, dang loai
chat xuc » chat huu, cam xuc, chao xu
va hanh » van hanh, va thanh, ban hanh
ky mang » ky nang, ke mang, ky dang
lai hoi » dai hoi, lai hoa, lai roi
hieu su » hieu sau, tieu su, hieu so
va danh » va dinh, va dan, dia danh
vi cua » vai cua, di cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
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 mang lai hoi. ((hieu su) or (hieu suat)) chat xuc ((va hanh) OR (va danh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky mang lai hoi. ((hieu su) OR (hieu suat)) chat xuc ((va hanh) OR (va danh)) vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky mang lai hoi. ((hieu su) or (hieu suat)) chat xuc ((va hanh) OR (va danh)) vi cua te*".