Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
chat huu » pham huu
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, co sach
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
huu va » cuu va, tuu va
5 hoi » o hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((ty nang) or (ty hang)) ((5 hoi) or (x ho)). hieu ve chat huu va hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ty hang)) ((5 hoi) OR (x ho)). hieu ve chat huu va hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ty nang) or (ty hang)) ((5 hoi) or (x ho)). hieu ve chat huu va hanh lai cua triet*.