Perhaps you should try some spelling variations:
dang xay » dang van, van xay
van hanh » van thanh, ban hanh, van anh
ve triet » su triet
va trien » va truyen, va thiet, va tuyen
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
va cham » va chat, va tham
soc van » hoc van, oc van, sac van
hanh di » hanh vi, hanh de, hang di
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 dang xay hoi. lieu va cham soc van hanh di ((ve triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky dang xay hoi. lieu va cham soc van hanh di ((ve triet) OR (va trien)).
• Adding a wildcard symbol may retrieve word variants: tu san ky dang xay hoi. lieu va cham soc van hanh di ((ve triet) or (va trien))*.