Perhaps you should try some spelling variations:
cua triet » su triet, va triet
va thuat » ky thuat, ki thuat, va thuc
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
va tham » van tham, va cham, va thanh
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
xuc va » duc va, tuc va, luc va

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 san ky nang xa hoi. lieu ((va tham) OR (va thuat)) xuc va danh vi ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky nang xa hoi. lieu ((va tham) or (va thuat)) xuc va danh vi ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: tu san ky nang xa hoi. lieu ((va tham) or (va thuat)) xuc va danh vi ((cua triet) OR (cua viet))*.