Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
va dinh » van dinh, va kinh, va tinh
va hanh » van hanh, va thanh, va danh
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
di va » dai va, di vao, doi va

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. hieu ((ve cam) or (ve cac)) tu ((va hanh) or (va dinh)) di va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang x hoi. hieu ((ve cam) OR (ve cac)) tu ((va hanh) OR (va dinh)) di va triet.
• Adding a wildcard symbol may retrieve word variants: te san ky nang x hoi. hieu ((ve cam) or (ve cac)) tu ((va hanh) or (va dinh)) di va triet*.