Perhaps you should try some spelling variations:
lam truoc » lam thuoc, nam truoc, lam truong
hieu van » hieu va, thien van, lieu va
truoc va » truc va, thuoc va, truong va
nhan tai » hang tai, van tai, toan tai
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
van lam » van nam
han tai » hang tai, van tai, toan tai
te san » te ban, ke san, tu san
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: te san ky nang xa hoi. hieu van lam truoc va ((han tai) OR (nhan tai)) su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang xa hoi. hieu van lam truoc va ((han tai) OR (nhan tai)) su triet".
• Adding a wildcard symbol may retrieve word variants: te san ky nang xa hoi. hieu van lam truoc va ((han tai) OR (nhan tai)) su triet*.