Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
va triet » va thiet, va trien, ve triet
dang ky » dang y, dan ky, dong ky
sang ky » sang kyo, tang ky, bang ky
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
san ky » van ky, dan ky, ban ky
soc va » hoc va, loc va, doc va

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) or (((sang ky) OR (dang ky)))) nang xa hoi. hieu va cham soc va hanh tri va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (((sang ky) OR (dang ky)))) nang xa hoi. hieu va cham soc va hanh tri va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) or (((sang ky) OR (dang ky)))) nang xa hoi. hieu va cham soc va hanh tri va triet".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (((sang ky) OR (dang ky)))) nang xa hoi. hieu va cham soc va hanh tri va triet*.