Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham luc » than luc, tham nuoc, tham thuc
va tham » van tham, va cham, va thanh
va danh » va dinh, va hanh, dia danh
cua tre » cua te, cuu tre, dua tren
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky
va dan » ca dan, va dao, va dau
x hoi » xa hoi, o hoi, x ho

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

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