Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dinh vi » dinh ve, dinh viet, dinh tri
va dinh » van dinh, va kinh, va tinh
cam tuc » cam tu, nam thuc, dam thuc
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
te sach » toc sach
ty nang » ky nang, ty xang, ty hang
vi cua » vai cua, di cua
o hoi » co hoi, o hoc, o hai

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 ty nang ((xa hoi) or (o hoi)). hieu va ((cam tuc) or (cam xuc)) va dinh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((xa hoi) OR (o hoi)). hieu va ((cam tuc) OR (cam xuc)) va dinh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((xa hoi) or (o hoi)). hieu va ((cam tuc) or (cam xuc)) va dinh vi cua triet*.