Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
hieu van » thien van, lieu va, hieu ve
hieu va » lieu va, hieu qua
nam xuc » cam xuc, nam xua, nam thuc
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
cu tre » cua tre, cuu tre, cu tri

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x ho. ((hieu van) OR (hieu va)) nam xuc va hanh dinh ((cu tre) OR (cu tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang x ho. ((hieu van) or (hieu va)) nam xuc va hanh dinh ((cu tre) OR (cu tren))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x ho. ((hieu van) or (hieu va)) nam xuc va hanh dinh ((cu tre) OR (cu tren))*.