Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, su triet, va triet
thanh de » hanh de, thanh ve, thanh do
hieu va » lieu va, hieu qua
duc ban » duc tan, duc van, dua ban
sach ky » sac ky, sach y, sach ty
luc bat » suc bat, luc nhat, luat bat
cuc ban » cua ban, cac ban, cuu ban
nang xa » nang x, lang xa, nang ma
va cam » va cham, va cac, va cao
de cua » le cua, te cua, dieu cua

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 ky nang xa hoi. hieu va cam ((((duc ban) or (luc bat))) or (cuc ban)) thanh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. hieu va cam ((((duc ban) OR (luc bat))) OR (cuc ban)) thanh de cua triet.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. hieu va cam ((((duc ban) or (luc bat))) or (cuc ban)) thanh de cua triet*.