Perhaps you should try some spelling variations:
vua chua » sua chua, cua chua, tua chua
hieu van » hieu va, thien van, lieu va
tang ma » mang may, tang van
hieu ve » hieu va
sach ky » sac ky, sach y, sach ty
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
va chua » ca chua, va chu, a chua
ky tang » ky nang, ky dang, kho tang
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa

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: te sach ky tang ma hoi. ((hieu ve) OR (hieu van)) cam duc va hanh ((va chua) OR (vua chua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky tang ma hoi. ((hieu ve) OR (hieu van)) cam duc va hanh ((va chua) or (vua chua)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky tang ma hoi. ((hieu ve) OR (hieu van)) cam duc va hanh ((va chua) or (vua chua)) tre*.