Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
ty nang » ky nang, ly nang, ty nong
ty hang » ly hang, thi hang, thu hang
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((ty nang) or (((ty hang) or (ty xang)))) xa hoi. hieu ve cam xuc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ty nang) OR (((ty hang) OR (ty xang)))) xa hoi. hieu ve cam xuc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty nang) or (((ty hang) or (ty xang)))) xa hoi. hieu ve cam xuc va hanh vai cua tre*.