Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
danh vi » hanh vi, dinh vi, danh di
ma lai » mua lai, mat lai, va lai
ve cac » va cac, vien cac
luc va » tuc va, loc va
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 ma lai. hieu ve cac ((luc va) or (duc va)) danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky sang ma lai. hieu ve cac ((luc va) OR (duc va)) danh vi cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ky sang ma lai. hieu ve cac ((luc va) or (duc va)) danh vi cua te*.