Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ve triet » va trien, su triet
van hanh » van thanh, ban hanh, van anh
chat soc » cham soc, chat hoc, chat doc
ky danh » ky anh
va chat » van chat, va phat, cao chat
soc van » hoc van, oc van, sac van
hanh di » hanh vi, hanh de, hang di
ky dang » ky nang
tu san » thu san, tu ban, tu can

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 dang) or (ky danh)) xa hoi. lieu va chat soc van hanh di ((cua triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ((ky dang) OR (ky danh)) xa hoi. lieu va chat soc van hanh di ((cua triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: tu san ((ky dang) or (ky danh)) xa hoi. lieu va chat soc van hanh di ((cua triet) or (ve triet))*.