Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
hanh dao » lanh dao, thanh dat, thanh dam
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
soc van » hoc van, oc van, sac van
cac van » cac dan
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 nang xa hoi. hieu va chat ((soc van) or (cac van)) hanh dao ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang xa hoi. hieu va chat ((soc van) OR (cac van)) hanh dao ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky nang xa hoi. hieu va chat ((soc van) or (cac van)) hanh dao ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu san ky nang xa hoi. hieu va chat ((soc van) or (cac van)) hanh dao ((cua triet) OR (va triet))*.