Perhaps you should try some spelling variations:
chau phu » chau phi, chau au, chau tho
su sach » so sach, vu sach
vu hanh » vu khanh, vu thanh, du hanh
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
cao hoi » cau hoi, co hoi, cao hoc
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
phu vu » phuc vu, phu nu, khu vu
vi cua » vai cua, di 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: su sach ((y nang) OR (v nang)) cao hoi. ((hieu ve) OR (hieu va)) chau phu vu hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (v nang)) cao hoi. ((hieu ve) or (hieu va)) chau phu vu hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (v nang)) cao hoi. ((hieu ve) or (hieu va)) chau phu vu hanh vi cua tre*.