Perhaps you should try some spelling variations:
sach van » sach han, sach va, bach van
thanh le » thinh le, thanh ve, thanh de
te sach » toc sach
hieu va » lieu va, hieu qua
dau luc » cau luc, dau luan, dau nuoc
luc van » luoc van, luu van, duc van
hanh le » hanh ve, hanh de, manh le
cuu tre » cua tre, cau tren, cau treo
ban xa » ban va, ban ma, ban da
va dau » va dao

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 van ban xa hoi. hieu va dau luc van ((hanh le) or (thanh le)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach van ban xa hoi. hieu va dau luc van ((hanh le) OR (thanh le)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach van ban xa hoi. hieu va dau luc van ((hanh le) or (thanh le)) cuu tre*.