Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
lap hai » lap tai, lap lai, lap hoat
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
ve cac » va cac, vien cac
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: so sach ky sang lap hai. hieu ve cac luc ((va danh) OR (va hanh)) vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky sang lap hai. hieu ve cac luc ((va danh) OR (va hanh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ky sang lap hai. hieu ve cac luc ((va danh) OR (va hanh)) vi cua te*.