Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
sach ky » sac ky, sach ty, sach kem
vu dinh » quy dinh
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
di cua » dai cua, doi cua, de cua
ve cam » ve cham, ve cac, va cam

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) OR (sach y)) nang xa hoi. hieu ve cam duc ((vu dinh) OR (van dinh)) di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) nang xa hoi. hieu ve cam duc ((vu dinh) or (van dinh)) di cua tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) nang xa hoi. hieu ve cam duc ((vu dinh) or (van dinh)) di cua tre*.