Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
hieu ve » hieu va, hieu van
cam tuc » cam tu, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
o hai » co hai, so hai, o lai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((xa hoi) or (o hai)). hieu ve ((cam tuc) or (cam xuc)) va hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((xa hoi) OR (o hai)). hieu ve ((cam tuc) OR (cam xuc)) va hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((xa hoi) or (o hai)). hieu ve ((cam tuc) or (cam xuc)) va hanh vi cua triet*.