Perhaps you should try some spelling variations:
su sach » so sach, vu sach
ty nang » ty xang, ty hang, ly nang
qua cam » qua cham, qua cac, qua ca
cam duc » cam xuc, cao duc, pham duc
va dinh » van dinh, va kinh, va tinh
dinh vi » dinh ve, dinh viet, dinh tri
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ty nang) OR (ky nang)) xa hoi. hieu qua cam duc va dinh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) OR (ky nang)) xa hoi. hieu qua cam duc va dinh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) OR (ky nang)) xa hoi. hieu qua cam duc va dinh vi cua tre*.