Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
cao hoi » cau hoi, co hoi, cao hoc
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
va bao » va bai
bao so » bai so, bao co, bao ho
so va » so van, so vat, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang cao hoi. lieu va bao so va danh va ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang cao hoi. lieu va bao so va danh va ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang cao hoi. lieu va bao so va danh va ((cua tre) or (cua triet))*.