Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
hanh lai » hanh tai, thanh lap, thanh loi
hanh lam » thanh lap, hanh kem, hanh va
cao hoi » cau hoi, cao hoc, tao hoi
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
co hoi » co hoc, co loi

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 san ky nang ((cao hoi) OR (co hoi)). hieu van cam xuc ban ((hanh lai) OR (hanh lam)) cua triet~.
• Adding a wildcard symbol may retrieve word variants: tu san ky nang ((cao hoi) or (co hoi)). hieu van cam xuc ban ((hanh lai) or (hanh lam)) cua triet*.