Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh vai » danh sai, danh va, doanh van
sach ty » sach tu, sach thu, xach tay
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
va tac » va cac
gia va » gia ba
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 ty) or (sach y)) nang x hoi. hieu va tac gia va danh vai ((cua triet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach ty) OR (sach y)) nang x hoi. hieu va tac gia va danh vai ((cua triet) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach ty) or (sach y)) nang x hoi. hieu va tac gia va danh vai ((cua triet) or (cua vat))*.