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