Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
va triet » va thiet, va trien, ve triet
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
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)) nang xa hoi. ((hieu va) OR (lieu 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)) nang xa hoi. ((hieu va) OR (lieu 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)) nang xa hoi. ((hieu va) OR (lieu va)) cham soc va hanh tri va triet".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (sang ky)) nang xa hoi. ((hieu va) OR (lieu va)) cham soc va hanh tri va triet*.