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

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

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