Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hoc sach » hoc sinh, hoc cac, hoc anh
va cham » va chat, va tham
duc ban » duc tan, duc van, dua ban
xuc ban » cuc ban, quoc ban, xuat ban
te sach » toc sach
nang xa » nang x, lang xa, nang ma
vu nang » vuc nang, va nang, vu dang
hieu va » lieu va, hieu qua
vi ve » va ve, gi ve, ve ve

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 (hoc sach)) vu nang xa hoi. hieu va cham ((xuc ban) OR (duc ban)) hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (hoc sach)) vu nang xa hoi. hieu va cham ((xuc ban) OR (duc ban)) hanh vi ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (hoc sach)) vu nang xa hoi. hieu va cham ((xuc ban) OR (duc ban)) hanh vi ve triet*".