Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
hanh lai » hanh lam, hanh tai, thanh lap
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
nang co » nang cao, nang doc, nang noi
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
va cam » va cham, va cac, va cao

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 co hoi. lieu va cam duc va hanh lai ((chau triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang co hoi. lieu va cam duc va hanh lai ((chau triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang co hoi. lieu va cam duc va hanh lai ((chau triet) or (su triet))*.