Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
va dinh » van dinh, va kinh, va tinh
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ve cam » ve cham, ve cac, va cam
cam tu » cam thu, nam tu, dam tu
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang ((x hoi) OR (x ho)). hieu ve cam tu ((va hanh) or (va dinh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang ((x hoi) OR (x ho)). hieu ve cam tu ((va hanh) OR (va dinh)) di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang ((x hoi) OR (x ho)). hieu ve cam tu ((va hanh) or (va dinh)) di cua triet".
• Adding a wildcard symbol may retrieve word variants: te san ky nang ((x hoi) OR (x ho)). hieu ve cam tu ((va hanh) or (va dinh)) di cua triet*.