Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van dinh » van minh, van dich, xuan dinh
hien cua » khien cua, dien cua, hieu cua
hien ca » hien cac, hien cau, hieu ca
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
va dinh » va kinh, va tinh, vu dinh
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nang xa hoi. hieu ((hien ca) or (hien cua)) giao ((va dinh) OR (van dinh)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. hieu ((hien ca) OR (hien cua)) giao ((va dinh) OR (van dinh)) va cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang xa hoi. hieu ((hien ca) or (hien cua)) giao ((va dinh) OR (van dinh)) va cua tre*".