Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cach giao » sach giao, cac giai, anh giao
cua triet » cua viet, su triet, va triet
danh vai » danh sai, danh va, doanh van
hieu va » lieu va, hieu qua
va cach » va cac
giao va » gia va, giai va, gian va
va danh » va dinh, va dan, va hanh
y nang » ky nang, ly nang, v nang
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: thuoc sach y nang x hoi. hieu va cach giao va danh vai ((cua triet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang x hoi. hieu va cach giao va danh vai ((cua triet) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang x hoi. hieu va cach giao va danh vai ((cua triet) or (cua vat))*.