Perhaps you should try some spelling variations:
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
vu van » tu van
xuc va » duc va, tuc va, luc va
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu van ky sang ma hoa. ((hieu ve) or (hieu va)) cac xuc va dau tu ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu van ky sang ma hoa. ((hieu ve) OR (hieu va)) cac xuc va dau tu ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: vu van ky sang ma hoa. ((hieu ve) or (hieu va)) cac xuc va dau tu ((cua tre) or (cuu tre))*.