Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau thuc » cau truc, cuu thuc, can thuc
vat hanh » vat thanh, van hanh, va hanh
te sach » toc sach
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu van
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di 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 sach y nang cao hoi. ((hieu ve) OR (hieu va)) cau thuc vat hanh vi cua triet~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang cao hoi. ((hieu ve) or (hieu va)) cau thuc vat hanh vi cua triet*.