Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
chat hoc » chat hoa, chat thom, cho hoc
cao hoc » co hoc, cho hoc
te sach » toc sach
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
tu sach » thu sach, su sach, tu cach
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang ((cao hoc) OR (chat hoc)). lieu va cam tuc va hanh lai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) y nang ((cao hoc) OR (chat hoc)). lieu va cam tuc va hanh lai cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y nang ((cao hoc) OR (chat hoc)). lieu va cam tuc va hanh lai cua triet*.