Perhaps you should try some spelling variations:
khai dung » khai ung, hai dung, khao dung
kha dung » khoa dung, khao dung, nha dung
cau tuc » cau truc, cau tu, cau luc
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa
va dau » va dao
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va cao

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: ((su sach) OR (so sach)) y nang ma hoi. lieu va cau tuc va dau ((khai dung) OR (kha dung)) tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) y nang ma hoi. lieu va cau tuc va dau ((khai dung) OR (kha dung)) tren~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y nang ma hoi. lieu va cau tuc va dau ((khai dung) OR (kha dung)) tren*.