Perhaps you should try some spelling variations:
hieu sau » hieu suat, tieu su, hieu va
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
mai thai » mai thi, mau thai, mai thanh
thu san » thuy san, thu ban, phu san
xuc van » duc van, luc van, vuc van
hieu su » tieu su, hieu so, hieu suat
ky sang » ky nang, ky dang, ky tang
mai hai » dai hai, mai mai, tai hai
san ky » sang ky, van ky, dan ky
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: thu san ky sang ((mai hai) OR (mai thai)). ((hieu su) or (hieu sau)) chat xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu san ky sang ((mai hai) OR (mai thai)). ((hieu su) OR (hieu sau)) chat xuc van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ky sang ((mai hai) OR (mai thai)). ((hieu su) or (hieu sau)) chat xuc van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thu san ky sang ((mai hai) OR (mai thai)). ((hieu su) or (hieu sau)) chat xuc van hanh vi cua te*.