Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
va chat » van chat, va phat, cao chat
va danh » va dinh, va hanh, dia danh
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ve cac » va cac, vien cac
va dan » ca dan, va dao, va dau
du va » dau va, tu va, su va
thiet » thieu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang xa hoi. hieu ((ve cac) OR (va chat)) duc ((va danh) OR (va dan)) du va thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang xa hoi. hieu ((ve cac) or (va chat)) duc ((va danh) OR (va dan)) du va thiet~".
• Adding a wildcard symbol may retrieve word variants: te san ky nang xa hoi. hieu ((ve cac) or (va chat)) duc ((va danh) OR (va dan)) du va thiet*.