Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
qua cau » quan cau, qua cac, qua ca
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
vi va » vi van, vai va, bi va
vu va » vu van, tu va, su va

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: vu sach ly nang xa hoi. hieu qua cau ((luc va) OR (tuc va)) hanh ((vi va) OR (vu va)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ly nang xa hoi. hieu qua cau ((luc va) or (tuc va)) hanh ((vi va) OR (vu va)) triet~".
• Adding a wildcard symbol may retrieve word variants: vu sach ly nang xa hoi. hieu qua cau ((luc va) or (tuc va)) hanh ((vi va) OR (vu va)) triet*.