Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
toc sach » hoc sach, doc sach, thuoc sach
ve triet » va trien, su triet
dung sai » dung tai, dung va, dung dat
van cam » van nam, van lam, van cau
va dung » van dung, va duong, vat dung
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cua tuc » cua duc, cua tu, cua thuoc
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) ky lang xa hoi. hieu van cam xuc va dung sai ((ve triet) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky lang xa hoi. hieu van cam xuc va dung sai ((ve triet) OR (cua tuc))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky lang xa hoi. hieu van cam xuc va dung sai ((ve triet) or (cua tuc))*".