Perhaps you should try some spelling variations:
ban hanh » ban hang
hoc sach » hoc sinh, hoc cac, hoc anh
cham xuc » cam xuc, chat xuc, cham soc
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
v nang » va nang, vu nang, van nang
vi ve » va ve, gi ve, vi he
ve ve » de ve, va ve, ke ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (hoc sach)) v nang xa hoi. hieu va cham xuc ban hanh ((vi ve) OR (ve ve)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (hoc sach)) v nang xa hoi. hieu va cham xuc ban hanh ((vi ve) OR (ve ve)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (hoc sach)) v nang xa hoi. hieu va cham xuc ban hanh ((vi ve) OR (ve ve)) triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (hoc sach)) v nang xa hoi. hieu va cham xuc ban hanh ((vi ve) OR (ve ve)) triet*.