Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cam truc » cau truc, nam truc, lam truoc
danh vai » danh sai, danh va, doanh van
tu sach » thu sach, su sach, te sach
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
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 cam » va cham, va cac, va cao
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: tu sach y nang ((o hai) or (co hai)). lieu va cam truc va danh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((o hai) OR (co hai)). lieu va cam truc va danh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((o hai) or (co hai)). lieu va cam truc va danh vai cua triet*.