Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
nang co » nang cao, nang doc, nang noi
thi van » thi lan, thi hanh, thi nang
nam luc » nhan luc, nam thuc, nam duoc
hanh va » hang va, hanh vi
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cua » va chua, via cua, ca cua

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: te sac ky nang co hoc. thi van ((nam luc) OR (nang luc)) van hanh va cua triet~.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang co hoc. thi van ((nam luc) or (nang luc)) van hanh va cua triet*.