Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va cham » va chat
va tham » van tham, va thanh, va thuat
soc van » hoc van, oc van, sac van
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky lang xa hoi. lieu ((va cham) OR (va tham)) soc van hanh vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang xa hoi. lieu ((va cham) OR (va tham)) soc van hanh vi ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky lang xa hoi. lieu ((va cham) OR (va tham)) soc van hanh vi ((cua triet) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu san ky lang xa hoi. lieu ((va cham) OR (va tham)) soc van hanh vi ((cua triet) or (va triet))*.