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

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 cach) OR (te sach)) y nang cao hoc. lieu va cam tuc va hanh lai ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (te sach)) y nang cao hoc. lieu va cam tuc va hanh lai ((cua triet) OR (va triet))~".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) y nang cao hoc. lieu va cam tuc va hanh lai ((cua triet) OR (va triet))*.