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
cua tre » cua te, cuu tre, dua tren
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
x hoi » xa hoi, o hoi, x ho

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