Perhaps you should try some spelling variations:
sach ky » sac ky, sach y, sach ty
duc ban » duc tan, duc van, dua ban
xuc ban » cuc ban, quoc ban, xuat ban
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 sang ma hoi. hieu ve cham ((xuc ban) OR (duc ban)) hanh ((vi cua) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang ma hoi. hieu ve cham ((xuc ban) or (duc ban)) hanh ((vi cua) OR (di cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang ma hoi. hieu ve cham ((xuc ban) or (duc ban)) hanh ((vi cua) OR (di cua)) tre*.