Perhaps you should try some spelling variations:
va thanh » ban thanh, va tinh, le thanh
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
hieu he » hieu ve, hiem he, hieu le
te san » te ban, ke san, ta san
tu san » thu san, tu ban, tu can
he nam » ha nam, nghe nam
nam tu » nam thu, nam thuc
tai su » tai so, tai tu, lai su

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) OR (tu san)) ky nang xa hoi. hieu he nam tu ((va thanh) OR (gia thanh)) tai su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te san) OR (tu san)) ky nang xa hoi. hieu he nam tu ((va thanh) or (gia thanh)) tai su triet~".
• Adding a wildcard symbol may retrieve word variants: ((te san) OR (tu san)) ky nang xa hoi. hieu he nam tu ((va thanh) or (gia thanh)) tai su triet*.