Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
minh tri » dinh tri, chinh tri, minh thu
tinh tri » dinh tri, chinh tri, tinh thai
nam duc » nam duoc, pham duc, nam thuc
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
va nam » van nam, ha nam, va nay
te bai » te bao, te tai, te ban
te sai » te tai, te lai, te hai

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 sai) OR (te bai)) ky nang ma hoi. hieu va nam duc va ((tinh tri) OR (minh tri)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sai) OR (te bai)) ky nang ma hoi. hieu va nam duc va ((tinh tri) or (minh tri)) cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((te sai) OR (te bai)) ky nang ma hoi. hieu va nam duc va ((tinh tri) or (minh tri)) cua triet*.