Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky hang » ky nang, ly hang, ky dang
van cam » van nam, van lam, van cau
va danh » va dinh, va dan, va hanh
va hoi » xa hoi, va hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky hang va hoi. hieu van cam xuc ((ban hanh) or (va danh)) vi ((cua triet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky hang va hoi. hieu van cam xuc ((ban hanh) OR (va danh)) vi ((cua triet) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: so sach ky hang va hoi. hieu van cam xuc ((ban hanh) or (va danh)) vi ((cua triet) or (cua vat))*.