Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
danh vai » danh sai, danh va, doanh van
ly hang » ly quang
hieu ve » hieu va, hieu van
cac loc » cac lop, cac toc, cac hoc
va danh » va dinh, va dan, va hanh
ty nang » ky nang, ty xang, ty hang
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
loc va » hoc va, luc va
x hoi » xa hoi, o hoi, x ho

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) or (ly hang)) x hoi. hieu ve cac loc va danh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty nang) OR (ly hang)) x hoi. hieu ve cac loc va danh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty nang) or (ly hang)) x hoi. hieu ve cac loc va danh vai cua tre*.