Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
cam tuc » cam tu, nam thuc, dam thuc
xa hanh » xa thanh, xa khanh, va hanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu van ((cam tuc) or (cam xuc)) xa hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang ma hoi. hieu van ((cam tuc) OR (cam xuc)) xa hanh vai cua tre*.