Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
co hai » co dai, co hoi, so hai
va cau » van cau, va cac, va dau
o hai » so hai, o lai, _ hai

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 y nang ((o hai) or (co hai)). lieu va cau truc va hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ((o hai) OR (co hai)). lieu va cau truc va hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ((o hai) or (co hai)). lieu va cau truc va hanh vai cua triet*.