Perhaps you should try some spelling variations:
hieu suat » hieu luat, hieu qua
chat xuc » chat huu, cam xuc, chao xu
dang lai » dang loai, dang hai, dung lai
ky dang » ky nang, ky danh
lai hoi » dai hoi, lai hoa, lai roi
hieu su » hieu sau, tieu su, hieu so
va hanh » van hanh, va thanh, va danh
tu sai » tu bai, tu san, tu cai
xuc va » duc va, tuc va, luc va
sai ky » sac ky
cua tu » cua tuc, cua su, cua cu

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